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Quad-Channel, Digital Isolators, Enhanced System-Level ESD Reliability ADUM3400/ADuM3401/ADuM3402
FEATURES
Enhanced system-level ESD performance per IEC 61000-4-x Low power operation 5 V operation 1.4 mA per channel maximum @ 0 Mbps to 2 Mbps 4.3 mA per channel maximum @ 10 Mbps 34 mA per channel maximum @ 90 Mbps 3 V operation 0.9 mA per channel maximum @ 0 Mbps to 2 Mbps 2.4 mA per channel maximum @ 10 Mbps 20 mA per channel maximum @ 90 Mbps Bidirectional communication 3 V/5 V level translation High temperature operation: 105C High data rate: dc to 90 Mbps (NRZ) Precise timing characteristics 2 ns maximum pulse-width distortion 2 ns maximum channel-to-channel matching High common-mode transient immunity: >25 kV/s Output enable function 16-lead SOIC wide body, Pb-free package Safety and regulatory approvals UL recognition: 2500 V rms for 1 minute per UL 1577 CSA Component Acceptance Notice #5A VDE Certificate of Conformity DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-01 DIN EN 60950 (VDE 0805): 2001-12; EN 60950: 2000 VIORM = 560 V peak
GENERAL DESCRIPTION
The ADuM340x 1 are 4-channel digital isolators based on Analog Devices' iCoupler(R) technology. Combining high speed CMOS and monolithic air core transformer technology, these isolation components provide outstanding performance characteristics superior to alternatives such as optocoupler devices. iCoupler devices remove the design difficulties commonly associated with optocouplers. Typical optocoupler concerns regarding uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects are eliminated with the simple iCoupler digital interfaces and stable performance characteristics. The need for external drivers and other discrete components is eliminated with these iCoupler products. Furthermore, iCoupler devices consume one-tenth to one-sixth the power of optocouplers at comparable signal data rates. The ADuM340x isolators provide three independent isolation channels in a variety of channel configurations and data rates (see the Ordering Guide). All models operate with the supply voltage on either side ranging from 2.7 V to 5.5 V, providing compatibility with lower voltage systems as well as enabling a voltage translation functionality across the isolation barrier. The ADuM340x isolators have a patented refresh feature that ensures dc correctness in the absence of input logic transitions and during power-up/power-down conditions. In comparison to the ADuM140x isolators, the ADuM340x isolators contain various circuit and layout changes to provide increased capability relative to system-level IEC 61000-4-x testing (ESD/burst/surge). The precise capability in these tests for either the ADuM140x or ADuM340x products is strongly determined by the design and layout of the user's board or module. For more information, see Application Note AN-793, ESD/Latch-Up Considerations with iCoupler Isolation Products.
1
APPLICATIONS
General-purpose multichannel isolation SPI(R) interface/data converter isolation RS-232/RS-422/RS-485 transceivers Industrial field bus isolation
Protected by U.S. Patents 5,952,849 and 6,873,065. Other patents pending.
FUNCTIONAL BLOCK DIAGRAMS
VDD1 1 GND1 2 VIA 3 VIB 4 VIC 5 VID 6 NC 7 GND1 8 ENCODE ENCODE ENCODE ENCODE DECODE DECODE DECODE DECODE
16 15 14 13 12 11 10 9
VDD2 GND2 VOA VOB VOC VOD
05983-001
VDD1 1 GND1 2 VIA 3 VIB 4 VIC 5 VOD 6 VE1 7 GND1 8 ENCODE ENCODE ENCODE DECODE DECODE DECODE DECODE ENCODE
16 15 14 13 12 11 10 9
VDD2 GND2 VOA VOB VOC VID
05983-002
VDD1 1 GND1 2 VIA 3 VIB 4 VOC 5 VOD 6 VE1 7 GND1 8 ENCODE ENCODE DECODE DECODE DECODE DECODE ENCODE ENCODE
16 15 14 13 12 11 10 9
VDD2 GND2 VOA VOB VIC VID
05983-003
VE2 GND2
VE2 GND2
VE2 GND2
Figure 1. ADUM3400 Functional Block Diagram
Figure 2. ADuM3401 Functional Block Diagram
Figure 3. ADuM3402 Functional Block Diagram
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 (c)2006 Analog Devices, Inc. All rights reserved.
ADUM3400/ADuM3401/ADuM3402 TABLE OF CONTENTS
Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagrams............................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Electrical Characteristics--5 V Operation................................ 3 Electrical Characteristics--3 V Operation................................ 6 Electrical Characteristics--Mixed 5 V/3 V or 3 V/5 V Operation....................................................................................... 8 Package Characteristics ............................................................. 12 Regulatory Information............................................................. 12 Insulation and Safety-Related Specifications.......................... 12 DIN EN 60747-5-2 (VDE 0884 Part 2) Insulation Characteristics ............................................................................ 13 Recommended Operating Conditions .................................... 13 Absolute Maximum Ratings ......................................................... 14 ESD Caution................................................................................ 14 Pin Configurations and Function Descriptions ......................... 15 Typical Performance Characteristics ........................................... 18 Application Information................................................................ 20 PC Board Layout ........................................................................ 20 System-Level ESD Considerations and Enhancements ........ 20 Propagation Delay-Related Parameters................................... 20 DC Correctness and Magnetic Field Immunity........................... 20 Power Consumption .................................................................. 22 Outline Dimensions ....................................................................... 23 Ordering Guide .......................................................................... 23
REVISION HISTORY
3/06--Revision 0: Initial Version
Rev. 0 | Page 2 of 24
ADUM3400/ADuM3401/ADuM3402 SPECIFICATIONS
ELECTRICAL CHARACTERISTICS--5 V OPERATION 1
4.5 V VDD1 5.5 V, 4.5 V VDD2 5.5 V; all minimum/maximum specifications apply over the entire recommended operation range, unless otherwise noted; all typical specifications are at TA = 25C, VDD1 = VDD2 = 5 V. Table 1.
Parameter DC SPECIFICATIONS Input Supply Current per Channel, Quiescent Output Supply Current per Channel, Quiescent ADUM3400, Total Supply Current, Four Channels 2 DC to 2 Mbps VDD1 Supply Current VDD2 Supply Current 10 Mbps (BRW and CRW Grades Only) VDD1 Supply Current VDD2 Supply Current 90 Mbps (CRW Grade Only) VDD1 Supply Current VDD2 Supply Current ADuM3401, Total Supply Current, Four Channels2 DC to 2 Mbps VDD1 Supply Current VDD2 Supply Current 10 Mbps (BRW and CRW Grades Only) VDD1 Supply Current VDD2 Supply Current 90 Mbps (CRW Grade Only) VDD1 Supply Current VDD2 Supply Current ADuM3402, Total Supply Current, Four Channels2 DC to 2 Mbps VDD1 or VDD2 Supply Current 10 Mbps (BRW and CRW Grades Only) VDD1 or VDD2 Supply Current 90 Mbps (CRW Grade Only) VDD1 or VDD2 Supply Current For All Models Input Currents Logic High Input Threshold Logic Low Input Threshold Logic High Output Voltages Logic Low Output Voltages Symbol IDDI (Q) IDDO (Q) Min Typ 0.57 0.29 Max Unit 0.83 0.35 mA mA Test Conditions
IDD1 (Q) IDD2 (Q) IDD1 (10) IDD2 (10) IDD1 (90) IDD2 (90)
2.9 1.2 9.0 3.0 72 19
3.5 1.9 11.6 5.5 100 36
mA mA mA mA mA mA
DC to 1 MHz logic signal freq. DC to 1 MHz logic signal freq. 5 MHz logic signal freq. 5 MHz logic signal freq. 45 MHz logic signal freq. 45 MHz logic signal freq.
IDD1 (Q) IDD2 (Q) IDD1 (10) IDD2 (10) IDD1 (90) IDD2 (90)
2.5 1.6 7.4 4.4 59 32
3.2 2.4 10.6 6.5 82 46
mA mA mA mA mA mA
DC to 1 MHz logic signal freq. DC to 1 MHz logic signal freq. 5 MHz logic signal freq. 5 MHz logic signal freq. 45 MHz logic signal freq. 45 MHz logic signal freq.
IDD1 (Q), IDD2 (Q) IDD1 (10), IDD2 (10) IDD1 (90), IDD2 (90) IIA, IIB, IIC, IID, IE1, IE2 VIH, VEH VIL, VEL VOAH, VOBH, VOCH, VODH VOAL, VOBL, VOCL, VODL -10 2.0
2.0 6.0 51
2.8 7.5 62
mA mA mA A V V V V V V V
DC to 1 MHz logic signal freq. 5 MHz logic signal freq. 45 MHz logic signal freq. 0 VIA, VIB, VIC, VID VDD1 or VDD2, 0 VE1, VE2 VDD1 or VDD2
+0.01 +10
0.8 VDD1, VDD2 - 0.1 5.0 VDD1, VDD2 - 0.4 4.8 0.0 0.04 0.2
0.1 0.1 0.4
IOx = -20 A, VIx = VIxH IOx = -4 mA, VIx = VIxH IOx = 20 A, VIx = VIxL IOx = 400 A, VIx = VIxL IOx = 4 mA, VIx = VIxL
Rev. 0 | Page 3 of 24
ADUM3400/ADuM3401/ADuM3402
Parameter SWITCHING SPECIFICATIONS ADuM340xARW Minimum Pulse Width 3 Maximum Data Rate 4 Propagation Delay 5 Pulse-Width Distortion, |tPLH - tPHL|5 Propagation Delay Skew 6 Channel-to-Channel Matching 7 ADuM340xBRW Minimum Pulse Width3 Maximum Data Rate4 Propagation Delay5 Pulse-Width Distortion, |tPLH - tPHL|5 Change vs. Temperature Propagation Delay Skew6 Channel-to-Channel Matching, Codirectional Channels7 Channel-to-Channel Matching, Opposing-Directional Channels7 ADuM340xCRW Minimum Pulse Width3 Maximum Data Rate4 Propagation Delay5 Pulse-Width Distortion, |tPLH - tPHL|5 Change vs. Temperature Propagation Delay Skew6 Channel-to-Channel Matching, Codirectional Channels7 Channel-to-Channel Matching, Opposing-Directional Channels7 For All Models Output Disable Propagation Delay (High/Low-to-High Impedance) Output Enable Propagation Delay (High Impedance-to-High/Low) Output Rise/Fall Time (10% to 90%) Common-Mode Transient Immunity at Logic High Output 8 Common-Mode Transient Immunity at Logic Low Output8 Refresh Rate Input Dynamic Supply Current per Channel 9 Output Dynamic Supply Current per Channel9 Symbol Min Typ Max Unit Test Conditions
PW tPHL, tPLH PWD tPSK tPSKCD/OD PW tPHL, tPLH PWD tPSK tPSKCD tPSKOD 10 20 32 5 1 50 65
1000 ns Mbps 100 ns 40 ns 50 ns 50 ns 100 50 3 15 3 6 ns Mbps ns ns ps/C ns ns ns
CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels
PW tPHL, tPLH PWD tPSK tPSKCD tPSKOD 90 18
8.3 120 27 0.5 3
11.1 32 2 10 2 5
ns Mbps ns ns ps/C ns ns ns
CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels
tPHZ, tPLH tPZH, tPZL tR/tF |CMH| |CML| fr IDDI (D) IDDO (D)
6 6 2.5 35 35 1.2 0.20 0.05
8 8
ns ns ns kV/s kV/s Mbps mA/Mbps mA/Mbps
CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels VIx = VDD1/VDD2, VCM = 1000 V, transient magnitude = 800 V VIx = 0 V, VCM = 1000 V, transient magnitude = 800 V
25 25
Rev. 0 | Page 4 of 24
ADUM3400/ADuM3401/ADuM3402
1 2
All voltages are relative to their respective ground. The supply current values for all four channels are combined when running at identical data rates. Output supply current values are specified with no output load present. The supply current associated with an individual channel operating at a given data rate can be calculated as described in the Power Consumption section. See Figure 8 through Figure 10 for information on per-channel supply current as a function of data rate for unloaded and loaded conditions. See Figure 11 through Figure 15 for total VDD1 and VDD2 supply currents as a function of data rate for ADUM3400/ADuM3401/ADuM3402 channel configurations. 3 The minimum pulse width is the shortest pulse width at which the specified pulse-width distortion is guaranteed. 4 The maximum data rate is the fastest data rate at which the specified pulse-width distortion is guaranteed. 5 tPHL propagation delay is measured from the 50% level of the falling edge of the VIx signal to the 50% level of the falling edge of the VOx signal. tPLH propagation delay is measured from the 50% level of the rising edge of the VIx signal to the 50% level of the rising edge of the VOx signal. 6 tPSK is the magnitude of the worst-case difference in tPHL or tPLH that is measured between units at the same operating temperature, supply voltages, and output load within the recommended operating conditions. 7 Codirectional channel-to-channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on the same side of the isolation barrier. Opposing-directional channel-to-channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on opposing sides of the isolation barrier. 8 CMH is the maximum common-mode voltage slew rate that can be sustained while maintaining VO > 0.8 VDD2. CML is the maximum common-mode voltage slew rate that can be sustained while maintaining VO < 0.8 V. The common-mode voltage slew rates apply to both rising and falling common-mode voltage edges. The transient magnitude is the range over which the common mode is slewed. 9 Dynamic supply current is the incremental amount of supply current required for a 1 Mbps increase in signal data rate. See Figure 8 through Figure 10 for information on per-channel supply current for unloaded and loaded conditions. See the Power Consumption section for guidance on calculating the per-channel supply current for a given data rate.
Rev. 0 | Page 5 of 24
ADUM3400/ADuM3401/ADuM3402
ELECTRICAL CHARACTERISTICS--3 V OPERATION 1
2.7 V VDD1 3.6 V, 2.7 V VDD2 3.6 V; all minimum/maximum specifications apply over the entire recommended operation range, unless otherwise noted; all typical specifications are at TA = 25C, VDD1 = VDD2 = 3.0 V. Table 2.
Parameter DC SPECIFICATIONS Input Supply Current per Channel, Quiescent Output Supply Current per Channel, Quiescent ADUM3400, Total Supply Current, Four Channels 2 DC to 2 Mbps VDD1 Supply Current VDD2 Supply Current 10 Mbps (BRW and CRW Grades Only) VDD1 Supply Current VDD2 Supply Current 90 Mbps (CRW Grade Only) VDD1 Supply Current VDD2 Supply Current ADuM3401, Total Supply Current, Four Channels2 DC to 2 Mbps VDD1 Supply Current VDD2 Supply Current 10 Mbps (BRW and CRW Grades Only) VDD1 Supply Current VDD2 Supply Current 90 Mbps (CRW Grade Only) VDD1 Supply Current VDD2 Supply Current ADuM3402, Total Supply Current, Four Channels2 DC to 2 Mbps VDD1 or VDD2 Supply Current 10 Mbps (BRW and CRW Grades Only) VDD1 or VDD2 Supply Current 90 Mbps (CRW Grade Only) VDD1 or VDD2 Supply Current For All Models Input Currents Logic High Input Threshold Logic Low Input Threshold Logic High Output Voltages Logic Low Output Voltages Symbol IDDI (Q) IDDO (Q) Min Typ 0.31 0.19 Max Unit 0.49 0.27 mA mA Test Conditions
IDD1 (Q) IDD2 (Q) IDD1 (10) IDD2 (10) IDD1 (90) IDD2 (90)
1.6 0.7 4.8 1.8 37 11
2.1 1.2 7.1 2.3 54 15
mA mA mA mA mA mA
DC to 1 MHz logic signal freq. DC to 1 MHz logic signal freq. 5 MHz logic signal freq. 5 MHz logic signal freq. 45 MHz logic signal freq. 45 MHz logic signal freq.
IDD1 (Q) IDD2 (Q) IDD1 (10) IDD2 (10) IDD1 (90) IDD2 (90)
1.4 0.9 4.1 2.5 31 17
1.9 1.5 5.6 3.3 44 24
mA mA mA mA mA mA
DC to 1 MHz logic signal freq. DC to 1 MHz logic signal freq. 5 MHz logic signal freq. 5 MHz logic signal freq. 45 MHz logic signal freq. 45 MHz logic signal freq.
IDD1 (Q), IDD2 (Q) IDD1 (10), IDD2 (10) IDD1 (90), IDD2 (90) IIA, IIB, IIC, IID, IE1, IE2 VIH, VEH VIL, VEL VOAH, VOBH, VOCH, VODH VOAL, VOBL, VOCL, VODL -10 1.6
1.2 3.3 24
1.7 4.4 39
mA mA mA A V V V V V V V
DC to 1 MHz logic signal freq. 5 MHz logic signal freq. 45 MHz logic signal freq. 0 VIA, VIB, VIC, VID VDD1 or VDD2, 0 VE1,VE2 VDD1 or VDD2
+0.01 +10
0.4 VDD1, VDD2 - 0.1 3.0 VDD1, VDD2 - 0.4 2.8 0.0 0.04 0.2
0.1 0.1 0.4
IOx = -20 A, VIx = VIxH IOx = -4 mA, VIx = VIxH IOx = 20 A, VIx = VIxL IOx = 400 A, VIx = VIxL IOx = 4 mA, VIx = VIxL
SWITCHING SPECIFICATIONS ADuM340xARW Minimum Pulse Width 3 Maximum Data Rate 4 Propagation Delay 5 Pulse-Width Distortion, |tPLH - tPHL|5 Propagation Delay Skew 6 Channel-to-Channel Matching 7
PW tPHL, tPLH PWD tPSK tPSKCD/OD 1 50 75
1000 ns Mbps 100 ns 40 ns 50 ns 50 ns
CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels
Rev. 0 | Page 6 of 24
ADUM3400/ADuM3401/ADuM3402
Parameter ADuM340xBRW Minimum Pulse Width3 Maximum Data Rate4 Propagation Delay5 Pulse-Width Distortion, |tPLH - tPHL|5 Change vs. Temperature Propagation Delay Skew6 Channel-to-Channel Matching, Codirectional Channels7 Channel-to-Channel Matching, Opposing-Directional Channels7 ADuM340xCRW Minimum Pulse Width3 Maximum Data Rate4 Propagation Delay5 Pulse-Width Distortion, |tPLH - tPHL|5 Change vs. Temperature Propagation Delay Skew6 Channel-to-Channel Matching, Codirectional Channels7 Channel-to-Channel Matching, Opposing-Directional Channels7 For All Models Output Disable Propagation Delay (High/Low-to-High Impedance) Output Enable Propagation Delay (High Impedance-to-High/Low) Output Rise/Fall Time (10% to 90%) Common-Mode Transient Immunity at Logic High Output 8 Common-Mode Transient Immunity at Logic Low Output8 Refresh Rate Input Dynamic Supply Current per Channel 9 Output Dynamic Supply Current per Channel9
1 2
Symbol PW tPHL, tPLH PWD tPSK tPSKCD tPSKOD
Min
Typ
Max Unit 100 ns Mbps ns ns ps/C ns ns ns
Test Conditions CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels
10 20
38 5
50 3 22 3 6
PW tPHL, tPLH PWD tPSK tPSKCD tPSKOD 90 20
8.3 120 34 0.5 3
11.1 45 2 16 2 5
ns Mbps ns ns ps/C ns ns ns
CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels
tPHZ, tPLH tPZH, tPZL tR/tF |CMH| |CML| fr IDDI (D) IDDO (D)
6 6 3 35 35 1.1 0.10 0.03
8 8
ns ns ns kV/s kV/s Mbps mA/Mbps mA/Mbps
CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels VIx = VDD1/VDD2, VCM = 1000 V, transient magnitude = 800 V VIx = 0 V, VCM = 1000 V, transient magnitude = 800 V
25 25
All voltages are relative to their respective ground. The supply current values for all four channels are combined when running at identical data rates. Output supply current values are specified with no output load present. The supply current associated with an individual channel operating at a given data rate can be calculated as described in the Power Consumption section. See Figure 8 through Figure 10 for information on per-channel supply current as a function of data rate for unloaded and loaded conditions. See Figure 11 through Figure 15 for total VDD1 and VDD2 supply currents as a function of data rate for ADUM3400/ADuM3401/ADuM3402 channel configurations. 3 The minimum pulse width is the shortest pulse width at which the specified pulse-width distortion is guaranteed. 4 The maximum data rate is the fastest data rate at which the specified pulse-width distortion is guaranteed. 5 tPHL propagation delay is measured from the 50% level of the falling edge of the VIx signal to the 50% level of the falling edge of the VOx signal. tPLH propagation delay is measured from the 50% level of the rising edge of the VIx signal to the 50% level of the rising edge of the VOx signal. 6 tPSK is the magnitude of the worst-case difference in tPHL or tPLH that is measured between units at the same operating temperature, supply voltages, and output load within the recommended operating conditions. 7 Codirectional channel-to-channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on the same side of the isolation barrier. Opposing-directional channel-to-channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on opposing sides of the isolation barrier. 8 CMH is the maximum common-mode voltage slew rate that can be sustained while maintaining VO > 0.8 VDD2. CML is the maximum common-mode voltage slew rate that can be sustained while maintaining VO < 0.8 V. The common-mode voltage slew rates apply to both rising and falling common-mode voltage edges. The transient magnitude is the range over which the common mode is slewed. 9 Dynamic supply current is the incremental amount of supply current required for a 1 Mbps increase in signal data rate. See Figure 8 through Figure 10 for information on per-channel supply current for unloaded and loaded conditions. See the Power Consumption section for guidance on calculating the per-channel supply current for a given data rate.
Rev. 0 | Page 7 of 24
ADUM3400/ADuM3401/ADuM3402
ELECTRICAL CHARACTERISTICS--MIXED 5 V/3 V OR 3 V/5 V OPERATION 1
5 V/3 V operation: 4.5 V VDD1 5.5 V, 2.7 V VDD2 3.6 V; 3 V/5 V operation: 2.7 V VDD1 3.6 V, 4.5 V VDD2 5.5 V; all minimum/maximum specifications apply over the entire recommended operation range, unless otherwise noted; all typical specifications are at TA = 25C; VDD1 = 3.0 V, VDD2 = 5 V or VDD1 = 5 V, VDD2 = 3.0 V. Table 3.
Parameter DC SPECIFICATIONS Input Supply Current per Channel, Quiescent 5 V/3 V Operation 3 V/5 V Operation Output Supply Current per Channel, Quiescent 5 V/3 V Operation 3 V/5 V Operation ADUM3400, Total Supply Current, Four Channels2 DC to 2 Mbps VDD1 Supply Current 5 V/3 V Operation 3 V/5 V Operation VDD2 Supply Current 5 V/3 V Operation 3 V/5 V Operation 10 Mbps (BRW and CRW Grades Only) VDD1 Supply Current 5 V/3 V Operation 3 V/5 V Operation VDD2 Supply Current 5 V/3 V Operation 3 V/5 V Operation 90 Mbps (CRW Grade Only) VDD1 Supply Current 5 V/3 V Operation 3 V/5 V Operation VDD2 Supply Current 5 V/3 V Operation 3 V/5 V Operation ADuM3401, Total Supply Current, Four Channels2 DC to 2 Mbps VDD1 Supply Current 5 V/3 V Operation 3 V/5 V Operation VDD2 Supply Current 5 V/3 V Operation 3 V/5 V Operation 10 Mbps (BRW and CRW Grades Only) VDD1 Supply Current 5 V/3 V Operation 3 V/5 V Operation VDD2 Supply Current 5 V/3 V Operation 3 V/5 V Operation Symbol IDDI (Q) 0.57 0.31 IDDO (Q) 0.29 0.19 0.27 0.35 mA mA 0.83 0.49 mA mA Min Typ Max Unit Test Conditions
IDD1 (Q) 2.9 1.6 IDD2 (Q) 0.7 1.2 IDD1 (10) 9.0 4.8 IDD2 (10) 1.8 3.0 IDD1 (90) 72 37 IDD2 (90) 11 19 15 36 mA mA 45 MHz logic signal freq. 45 MHz logic signal freq. 100 54 mA mA 45 MHz logic signal freq. 45 MHz logic signal freq. 2.3 5.5 mA mA 5 MHz logic signal freq. 5 MHz logic signal freq. 11.6 7.1 mA mA 5 MHz logic signal freq. 5 MHz logic signal freq. 1.2 1.9 mA mA DC to 1 MHz logic signal freq. DC to 1 MHz logic signal freq. 3.5 2.1 mA mA DC to 1 MHz logic signal freq. DC to 1 MHz logic signal freq.
IDD1 (Q) 2.5 1.4 IDD2 (Q) 0.9 1.6 IDD1 (10) 7.4 4.1 IDD2 (10) 2.5 4.4 3.3 6.5 mA mA 5 MHz logic signal freq. 5 MHz logic signal freq. 10.6 5.6 mA mA 5 MHz logic signal freq. 5 MHz logic signal freq. 1.5 2.4 mA mA DC to 1 MHz logic signal freq. DC to 1 MHz logic signal freq. 3.2 1.9 mA mA DC to 1 MHz logic signal freq. DC to 1 MHz logic signal freq.
Rev. 0 | Page 8 of 24
ADUM3400/ADuM3401/ADuM3402
Parameter 90 Mbps (CRW Grade Only) VDD1 Supply Current 5 V/3 V Operation 3 V/5 V Operation VDD2 Supply Current 5 V/3 V Operation 3 V/5 V Operation ADuM3402, Total Supply Current, Four Channels2 DC to 2 Mbps VDD1 Supply Current 5 V/3 V Operation 3 V/5 V Operation VDD2 Supply Current 5 V/3 V Operation 3 V/5 V Operation 10 Mbps (BRW and CRW Grades Only) VDD1 Supply Current 5 V/3 V Operation 3 V/5 V Operation VDD2 Supply Current 5 V/3 V Operation 3 V/5 V Operation 90 Mbps (CRW Grade Only) VDD1 Supply Current 5 V/3 V Operation 3 V/5 V Operation VDD2 Supply Current 5 V/3 V Operation 3 V/5 V Operation For All Models Input Currents Logic High Input Threshold 5 V/3 V Operation 3 V/5 V Operation Logic Low Input Threshold 5 V/3 V Operation 3 V/5 V Operation Logic High Output Voltages Logic Low Output Voltages Symbol IDD1 (90) 59 31 IDD2 (90) 17 32 24 46 mA mA 45 MHz logic signal freq. 45 MHz logic signal freq. 82 44 mA mA 45 MHz logic signal freq. 45 MHz logic signal freq. Min Typ Max Unit Test Conditions
IDD1 (Q) 2.0 1.2 IDD2 (Q) 1.2 2.0 IDD1 (10) 6.0 3.3 IDD2 (10) 3.3 6.0 IDD1 (90) 46 24 IDD2 (90) 24 46 IIA, IIB, IIC, IID, IE1, IE2 VIH, VEH -10 +0.01 39 62 +10 mA mA A 45 MHz logic signal freq. 45 MHz logic signal freq. 0 VIA,VIB, VIC,VID VDD1 or VDD2, 0 VE1,VE2 VDD1 or VDD2 62 39 mA mA 45 MHz logic signal freq. 45 MHz logic signal freq. 4.4 7.5 mA mA 5 MHz logic signal freq. 5 MHz logic signal freq. 7.5 4.4 mA mA 5 MHz logic signal freq. 5 MHz logic signal freq. 1.7 2.8 mA mA DC to 1 MHz logic signal freq. DC to 1 MHz logic signal freq. 2.8 1.7 mA mA DC to 1 MHz logic signal freq. DC to 1 MHz logic signal freq.
2.0 1.6 VIL, VEL 0.8 0.4 VOAH, VOBH, VDD1, VDD2 - 0.1 VOCH, VODH VDD1, VDD2 - 0.4 VOAL, VOBL, VOCL, VODL VDD1, VDD2 VDD1, VDD2 - 0.2 0.0 0.1 0.04 0.1 0.2 0.4
V V V V V V V V V
IOx = -20 A, VIx = VIxH IOx = -4 mA, VIx = VIxH IOx = 20 A, VIx = VIxL IOx = 400 A, VIx = VIxL IOx = 4 mA, VIx = VIxL
SWITCHING SPECIFICATIONS ADuM340xARW Minimum Pulse Width 3 Maximum Data Rate 4 Propagation Delay 5 Pulse-Width Distortion, |tPLH - tPHL|5 Propagation Delay Skew 6 Channel-to-Channel Matching 7
PW tPHL, tPLH PWD tPSK tPSKCD/OD 1 50 70
1000 ns Mbps 100 ns 40 ns 50 ns 50 ns
CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels
Rev. 0 | Page 9 of 24
ADUM3400/ADuM3401/ADuM3402
Parameter ADuM340xBRW Minimum Pulse Width3 Maximum Data Rate4 Propagation Delay5 Pulse-Width Distortion, |tPLH - tPHL|5 Change vs. Temperature Propagation Delay Skew6 Channel-to-Channel Matching, Codirectional Channels7 Channel-to-Channel Matching, Opposing-Directional Channels7 ADuM340xCRW Minimum Pulse Width3 Maximum Data Rate4 Propagation Delay5 Pulse-Width Distortion, |tPLH - tPHL|5 Change vs. Temperature Propagation Delay Skew6 Channel-to-Channel Matching, Codirectional Channels7 Channel-to-Channel Matching, Opposing-Directional Channels7 For All Models Output Disable Propagation Delay (High/Low-to-High Impedance) Output Enable Propagation Delay (High Impedance-to-High/Low) Output Rise/Fall Time (10% to 90%) 5 V/3 V Operation 3 V/5 V Operation Common-Mode Transient Immunity at Logic High Output 8 Common-Mode Transient Immunity at Logic Low Output8 Refresh Rate 5 V/3 V Operation 3 V/5 V Operation Input Dynamic Supply Current per Channel9 5 V/3 V Operation 3 V/5 V Operation Output Dynamic Supply Current per Channel9 5 V/3 V Operation 3 V/5 V Operation Symbol PW tPHL, tPLH PWD tPSK tPSKCD tPSKOD 10 15 35 5 22 3 6 Min Typ Max Unit 100 50 3 ns Mbps ns ns ps/C ns ns ns Test Conditions CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels
PW tPHL, tPLH PWD tPSK tPSKCD tPSKOD 90 20
8.3 120 30 0.5 3
11.1 40 2 14 2 5
ns Mbps ns ns ps/C ns ns ns
CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels
tPHZ, tPLH tPZH, tPZL tR/tf
6 6
8 8
ns ns
CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels
|CMH| |CML| fr
25 25
3.0 2.5 35 35
ns ns kV/s kV/s
VIx = VDD1/VDD2, VCM = 1000 V, transient magnitude = 800 V VIx = 0 V, VCM = 1000 V, transient magnitude = 800 V
1.2 1.1 IDDI (D) 0.20 0.10 IDDO (D) 0.03 0.05
Mbps Mbps mA/Mbps mA/Mbps mA/Mbps mA/Mbps
Rev. 0 | Page 10 of 24
ADUM3400/ADuM3401/ADuM3402
1 2
All voltages are relative to their respective ground. The supply current values for all four channels are combined when running at identical data rates. Output supply current values are specified with no output load present. The supply current associated with an individual channel operating at a given data rate can be calculated as described in the Power Consumption section. See Figure 8 through Figure 10 for information on per-channel supply current as a function of data rate for unloaded and loaded conditions. See Figure 11 through Figure 15 for total VDD1 and VDD2 supply currents as a function of data rate for ADUM3400/ADuM3401/ADuM3402 channel configurations. 3 The minimum pulse width is the shortest pulse width at which the specified pulse-width distortion is guaranteed. 4 The maximum data rate is the fastest data rate at which the specified pulse-width distortion is guaranteed. 5 tPHL propagation delay is measured from the 50% level of the falling edge of the VIx signal to the 50% level of the falling edge of the VOx signal. tPLH propagation delay is measured from the 50% level of the rising edge of the VIx signal to the 50% level of the rising edge of the VOx signal. 6 tPSK is the magnitude of the worst-case difference in tPHL or tPLH that is measured between units at the same operating temperature, supply voltages, and output load within the recommended operating conditions. 7 Codirectional channel-to-channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on the same side of the isolation barrier. Opposing-directional channel-to-channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on opposing sides of the isolation barrier. 8 CMH is the maximum common-mode voltage slew rate that can be sustained while maintaining VO > 0.8 VDD2. CML is the maximum common-mode voltage slew rate that can be sustained while maintaining VO < 0.8 V. The common-mode voltage slew rates apply to both rising and falling common-mode voltage edges. The transient magnitude is the range over which the common mode is slewed. 9 Dynamic supply current is the incremental amount of supply current required for a 1 Mbps increase in signal data rate. See Figure 8 through Figure 10 for information on per-channel supply current for unloaded and loaded conditions. See the Power Consumption section for guidance on calculating the per-channel supply current for a given data rate.
Rev. 0 | Page 11 of 24
ADUM3400/ADuM3401/ADuM3402
PACKAGE CHARACTERISTICS
Table 4.
Parameter Resistance (Input to Output) 1 Capacitance (Input to Output)1 Input Capacitance 2 IC Junction-to-Case Thermal Resistance, Side 1 IC Junction-to-Case Thermal Resistance, Side 2
1
Symbol RI-O CI-O CI JCI JCO
Min
Typ 1012 2.2 4.0 33 28
Max
Unit pF pF C/W C/W
Test Conditions f = 1 MHz Thermocouple located at center of package underside
2
Device considered a 2-terminal device; Pin 1, Pin 2, Pin 3, Pin 4, Pin 5, Pin 6, Pin 7, and Pin 8 shorted together and Pin 9, Pin 10, Pin 11, Pin 12, Pin 13, Pin 14, Pin 15, and Pin 16 shorted together. Input capacitance is from any input data pin to ground.
REGULATORY INFORMATION
The ADuM340x is approved by the organizations listed in Table 5. Table 5.
UL 1 Recognized under 1577 component recognition program1 Double/reinforced insulation, 2500 V rms isolation voltage CSA Approved under CSA Component Acceptance Notice #5A Reinforced insulation per CSA 60950-1-03 and IEC 60950-1, 400 V rms maximum working voltage VDE 2 Certified according to DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-012 Basic insulation, 560 V peak
File E214100
1 2
File 205078
Complies with DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-01, DIN EN 60950 (VDE 0805): 2001-12; EN 60950: 2000 Reinforced insulation, 560 V peak File 2471900-4880-0001
In accordance with UL1577, each ADuM340x is proof tested by applying an insulation test voltage 3000 V rms for 1 sec (current leakage detection limit = 5 A). In accordance with DIN EN 60747-5-2, each ADuM340x is proof tested by applying an insulation test voltage 1050 V peak for 1 sec (partial discharge detection limit = 5 pC). The * marking branded on the component designates DIN EN 60747-5-2 approval.
INSULATION AND SAFETY-RELATED SPECIFICATIONS
Table 6.
Parameter Rated Dielectric Insulation Voltage Minimum External Air Gap (Clearance) Minimum External Tracking (Creepage) Minimum Internal Gap (Internal Clearance) Tracking Resistance (Comparative Tracking Index) Isolation Group Symbol Value 2500 L(I01) 7.7 min L(I02) Unit Conditions V rms 1-minute duration mm Measured from input terminals to output terminals, shortest distance through air 8.1 min mm Measured from input terminals to output terminals, shortest distance path along body 0.017 min mm Insulation distance through insulation >175 V DIN IEC 112/VDE 0303 Part 1 IIIa Material Group (DIN VDE 0110, 1/89, Table 1)
CTI
Rev. 0 | Page 12 of 24
ADUM3400/ADuM3401/ADuM3402
DIN EN 60747-5-2 (VDE 0884 PART 2) INSULATION CHARACTERISTICS
Table 7.
Description Installation Classification per DIN VDE 0110 For Rated Mains Voltage 150 V rms For Rated Mains Voltage 300 V rms For Rated Mains Voltage 400 V rms Climatic Classification Pollution Degree (DIN VDE 0110, Table 1) Maximum Working Insulation Voltage Input-to-Output Test Voltage, Method b1 VIORM x 1.875 = VPR, 100% Production Test, tm = 1 sec, Partial Discharge < 5 pC Input-to-Output Test Voltage, Method a After Environmental Tests Subgroup 1 VIORM x 1.6 = VPR, tm = 60 sec, Partial Discharge < 5 pC After Input and/or Safety Test Subgroup 2/3 VIORM x 1.2 = VPR, tm = 60 sec, Partial Discharge < 5 pC Highest Allowable Overvoltage (Transient Overvoltage, tTR = 10 sec) Safety-Limiting Values (Maximum Value Allowed in the Event of a Failure; also see Figure 4) Case Temperature Side 1 Current Side 2 Current Insulation Resistance at TS, VIO = 500 V Symbol Characteristic I-IV I-III I-II 40/105/21 2 560 1050 Unit
VIORM VPR VPR
V peak V peak
896 672 VTR TS IS1 IS2 RS 4000 150 265 335 >109
V peak V peak V peak C mA mA
These isolators are suitable for basic electrical isolation only within the safety limit data. Maintenance of the safety data is ensured by protective circuits. The * marking on packages denotes DIN EN 60747-5-2 approval.
350
RECOMMENDED OPERATING CONDITIONS
Table 8.
SIDE #2
300
SAFETY-LIMITING CURRENT (mA)
250 200
150
SIDE #1
Parameter Operating Temperature Supply Voltages 1 Input Signal Rise and Fall Times
1
Symbol Min Max Unit TA -40 +105 C VDD1, VDD 2 2.7 5.5 V 1.0 ms
100 50 0 0 50 100 150 CASE TEMPERATURE (C) 200
All voltages are relative to their respective ground. See the DC Correctness and Magnetic Field Immunity section for information on immunity to external magnetic fields.
Figure 4. Thermal Derating Curve, Dependence of Safety-Limiting Values with Case Temperature per DIN EN 60747-5-2
05983-004
Rev. 0 | Page 13 of 24
ADUM3400/ADuM3401/ADuM3402 ABSOLUTE MAXIMUM RATINGS
Ambient temperature = 25C, unless otherwise noted. Table 9.
Parameter Storage Temperature Ambient Operating Temperature Supply Voltages 1 Input Voltage1, 2 Output Voltage1, 2 Average Output Current per Pin 3 Side 1 Side 2 Common-Mode Transients 4
1 2
Symbol TST TA VDD1, VDD2 VIA, VIB, VIC, VID, VE1,VE2 VOA, VOB, VOC, VOD IO1 IO2 CMH, CML
Min -65 -40 -0.5 -0.5 -0.5 -18 -22 -100
Max +150 +105 +7.0 VDDI + 0.5 VDDO + 0.5 +18 +22 +100
Unit C C V V V mA mA kV/s
All voltages are relative to their respective ground. VDDI and VDDO refer to the supply voltages on the input and output sides of a given channel, respectively. See the PC Board Layout section. 3 See Figure 4 for maximum rated current values for various temperatures. 4 Refers to common-mode transients across the insulation barrier. Common-mode transients exceeding the Absolute Maximum Ratings can cause latch-up or permanent damage.
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although this product features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality.
Table 10. Truth Table (Positive Logic)
VIX Input 1 H L X X X X VEX Input 2 H or NC H or NC L H or NC L X VDDI State1 Powered Powered Powered Unpowered Unpowered Powered VDDO State1 Powered Powered Powered Powered Powered Unpowered VOX Output1 Notes H L Z H Outputs return to the input state within 1 s of VDDI power restoration. Z Indeterminate Outputs return to the input state within 1 s of VDDO power restoration if VEX state is H or NC. Outputs return to high impedance state within 8 ns of VDDO power restoration if VEX state is L.
1
VIX and VOX refer to the input and output signals of a given channel (A, B, C, or D). VEX refers to the output enable signal on the same side as the VOX outputs. VDDI and VDDO refer to the supply voltages on the input and output sides of the given channel, respectively. 2 In noisy environments, connecting VEX to an external logic high or low is recommended.
Rev. 0 | Page 14 of 24
ADUM3400/ADuM3401/ADuM3402 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
VDD1 1 *GND1 2 VIA 3 VIB 4 VIC 5 VID 6 NC 7 *GND1 8
16 15
VDD2 GND2* VOA VOB VOC VOD VE2
05983-005
ADUM3400
TOP VIEW (Not to Scale)
14 13 12 11 10 9
GND2*
NC = NO CONNECT
Figure 5. ADUM3400 Pin Configuration
*Pin 2 and Pin 8 are internally connected and connecting both to GND1 is recommended. Pin 9 and Pin 15 are internally connected and connecting both to GND2 is recommended. In noisy environments, connecting output enables (Pin 7 for ADuM3401/ADuM3402 and Pin 10 for all models) to an external logic high or low is recommended.
Table 11. ADUM3400 Pin Function Descriptions
Pin No. 1 2, 8 3 4 5 6 7 9, 15 10 Mnemonic VDD1 GND1 VIA VIB VIC VID NC GND2 VE2 Description Supply Voltage for Isolator Side 1, 2.7 V to 5.5 V. Ground 1. Ground Reference for Isolator Side 1. Logic Input A. Logic Input B. Logic Input C. Logic Input D. No Connect. Ground 2. Ground reference for Isolator Side 2. Output Enable 2. Active high logic input. VOA, VOB, VOC, and VOD outputs are enabled when VE2 is high or disconnected. VOA, VOB, VOC, and VOD outputs are disabled when VE2 is low. In noisy environments, connecting VE2 to an external logic high or low is recommended. Logic Output D. Logic Output C. Logic Output B. Logic Output A. Supply Voltage for Isolator Side 2, 2.7 V to 5.5 V.
11 12 13 14 16
VOD VOC VOB VOA VDD2
Rev. 0 | Page 15 of 24
ADUM3400/ADuM3401/ADuM3402
VDD1 1 *GND1 2 VIA 3 VIB 4 VIC 5 VOD 6 VE1 7 *GND1 8
16 15
VDD2 GND2* VOA VOB VOC VID VE2
05983-006
ADuM3401
TOP VIEW (Not to Scale)
14 13 12 11 10 9
GND2*
NC = NO CONNECT
Figure 6. ADuM3401 Pin Configuration
*Pin 2 and Pin 8 are internally connected and connecting both to GND1 is recommended. Pin 9 and Pin 15 are internally connected and connecting both to GND2 is recommended. In noisy environments, connecting output enables (Pin 7 for ADuM3401/ADuM3402 and Pin 10 for all models) to an external logic high or low is recommended.
Table 12. ADuM3401 Pin Function Descriptions
Pin No. 1 2, 8 3 4 5 6 7 9, 15 10 Mnemonic VDD1 GND1 VIA VIB VIC VOD VE1 GND2 VE2 Description Supply Voltage for Isolator Side 1, 2.7 V to 5.5 V. Ground 1. Ground reference for Isolator Side 1. Logic Input A. Logic Input B. Logic Input C. Logic Output D. Output Enable 1. Active high logic input. VOD output is enabled when VE1 is high or disconnected. VOD is disabled when VE1 is low. In noisy environments, connecting VE1 to an external logic high or low is recommended. Ground 2. Ground reference for isolator Side 2. Output Enable 2. Active high logic input. VOA, VOB, and VOC outputs are enabled when VE2 is high or disconnected. VOA, VOB, and VOC outputs are disabled when VE2 is low. In noisy environments, connecting VE2 to an external logic high or low is recommended. Logic Input D. Logic Output C. Logic Output B. Logic Output A. Supply Voltage for Isolator Side 1, 2.7 V to 5.5 V.
11 12 13 14 16
VID VOC VOB VOA VDD2
Rev. 0 | Page 16 of 24
ADUM3400/ADuM3401/ADuM3402
VDD1 1 *GND1 2 VIA 3 VIB 4 VOC 5 VOD 6 VE1 7 *GND1 8
16 15
VDD2 GND2* VOA VOB VIC VID VE2
05983-007
ADuM3402
TOP VIEW (Not to Scale)
14 13 12 11 10 9
GND2*
NC = NO CONNECT
Figure 7. ADuM3402 Pin Configuration
*Pin 2 and Pin 8 are internally connected and connecting both to GND1 is recommended. Pin 9 and Pin 15 are internally connected and connecting both to GND2 is recommended. In noisy environments, connecting output enables (Pin 7 for ADuM3401/ADuM3402 and Pin 10 for all models) to an external logic high or low is recommended.
Table 13. ADuM3402 Pin Function Descriptions
Pin No. 1 2, 8 3 4 5 6 7 Mnemonic VDD1 GND1 VIA VIB VOC VOD VE1 Description Supply Voltage for Isolator Side 1, 2.7 V to 5.5 V. Ground 1. Ground reference for Isolator Side 1. Logic Input A. Logic Input B. Logic Output C. Logic Output D. Output Enable 1. Active high logic input. VOC and VOD outputs are enabled when VE1 is high or disconnected. VOC and VOD outputs are disabled when VE1 is low. In noisy environments, connecting VE1 to an external logic high or low is recommended. Ground 2. Ground reference for isolator Side 2. Output Enable 2. Active high logic input. VOA and VOB outputs are enabled when VE2 is high or disconnected. VOA and VOB outputs are disabled when VE2 is low. In noisy environments, connecting VE2 to an external logic high or low is recommended. Logic Input D. Logic Input C. Logic Output B. Logic Output A. Supply Voltage for Isolator Side 2, 2.7 V to 5.5 V.
9, 15 10
GND2 VE2
11 12 13 14 16
VID VIC VOB VOA VDD2
Rev. 0 | Page 17 of 24
ADUM3400/ADuM3401/ADuM3402 TYPICAL PERFORMANCE CHARACTERISTICS
20
80
CURRENT/CHANNEL (mA)
15
60
5V 10
CURRENT (mA)
40 5V 3V 20
3V 5
05983-008
0
20
40 60 DATA RATE (Mbps)
80
100
0
20
40 60 DATA RATE (Mbps)
80
100
Figure 8. Typical Input Supply Current per Channel vs. Data Rate (No Load)
20 80
Figure 11. Typical ADUM3400 VDD1 Supply Current vs. Data Rate for 5 V and 3 V Operation
CURRENT/CHANNEL (mA)
15
60
10
CURRENT (mA)
40
5 5V
20 5V 3V
05983-009
3V 80 100 0 20 40 60 DATA RATE (Mbps) 80 100
05983-012 05983-013
0 0 20 40 60 DATA RATE (Mbps)
0
Figure 9. Typical Output Supply Current per Channel vs. Data Rate (No Load)
20 80
Figure 12. Typical ADUM3400 VDD2 Supply Current vs. Data Rate for 5 V and 3 V Operation
CURRENT/CHANNEL (mA)
15
60
10 5V 5 3V 0 0 20 40 60 DATA RATE (Mbps) 80 100
CURRENT (mA)
40 5V
20 3V
05983-010
0 0 20 40 60 DATA RATE (Mbps) 80 100
Figure 10. Typical Output Supply Current per Channel vs. Data Rate (15 pF Output Load)
Figure 13. Typical ADuM3401 VDD1 Supply Current vs. Data Rate for 5 V and 3 V Operation
Rev. 0 | Page 18 of 24
05983-011
0
0
ADUM3400/ADuM3401/ADuM3402
80 40
PROPAGATION DELAY (ns)
60
3V 35
CURRENT (mA)
40 5V 20 3V
05983-014
30
5V
0
20
40 60 DATA RATE (Mbps)
80
100
-25
0 25 50 TEMPERATURE (C)
75
100
Figure 14. Typical ADuM3401 VDD2 Supply Current vs. Data Rate for 5 V and 3 V Operation
80
Figure 16. Propagation Delay vs. Temperature, C Grade
60
CURRENT (mA)
40 5V 20 3V
05983-015
0 0 20 40 60 DATA RATE (Mbps) 80 100
Figure 15. Typical ADuM3402 VDD1 or VDD2 Supply Current vs. Data Rate for 5 V and 3 V Operation
Rev. 0 | Page 19 of 24
05983-016
0
25 -50
ADUM3400/ADuM3401/ADuM3402 APPLICATION INFORMATION
PC BOARD LAYOUT
The ADuM340x digital isolator requires no external interface circuitry for the logic interfaces. Power supply bypassing is strongly recommended at the input and output supply pins (see Figure 17). Bypass capacitors are most conveniently connected between Pin 1 and Pin 2 for VDD1 and between Pin 15 and Pin 16 for VDD2. The capacitor value should be between 0.01 F and 0.1 F. The total lead length between both ends of the capacitor and the input power supply pin should not exceed 20 mm. Bypassing between Pin 1 and Pin 8 and between Pin 9 and Pin 16 should also be considered unless the ground pair on each package side is connected close to the package.
VDD1 GND1 VIA VIB VIC/OC VID/OD VE1 GND1 VDD2 GND2 VOA VOB VOC/IC VOD/ID VE2 GND2
While the ADuM340x improve system-level ESD reliability, they are no substitute for a robust system-level design. See Application Note AN-793 ESD/Latch-Up Considerations with iCoupler Isolation Products for detailed recommendations on board layout and system-level design.
PROPAGATION DELAY-RELATED PARAMETERS
Propagation delay is a parameter that describes the time it takes a logic signal to propagate through a component. The propagation delay to a logic low output can differ from the propagation delay to a logic high.
INPUT (VIX) 50%
tPLH
OUTPUT (VOX)
tPHL
50%
05983-018
05983-017
Figure 18. Propagation Delay Parameters
Figure 17. Recommended Printed Circuit Board Layout
In applications involving high common-mode transients, care should be taken to ensure that board coupling across the isolation barrier is minimized. Furthermore, the board layout should be designed such that any coupling that does occur equally affects all pins on a given component side. Failure to ensure this could cause voltage differentials between pins exceeding the device's Absolute Maximum Ratings, thereby leading to latch-up or permanent damage.
Pulse-width distortion is the maximum difference between these two propagation delay values and is an indication of how accurately the input signal's timing is preserved. Channel-to-channel matching refers to the maximum amount the propagation delay differs between channels within a single ADuM340x component. Propagation delay skew refers to the maximum amount the propagation delay differs between multiple ADuM340x components operating under the same conditions.
SYSTEM-LEVEL ESD CONSIDERATIONS AND ENHANCEMENTS
System-level ESD reliability (for example, per IEC 61000-4-x) is highly dependent on system design which varies widely by application. The ADuM340x incorporate many enhancements to make ESD reliability less dependent on system design. The enhancements include: * ESD protection cells added to all input/output interfaces. * Key metal trace resistances reduced using wider geometry and paralleling of lines with vias. * The SCR effect inherent in CMOS devices minimized by use of guarding and isolation technique between PMOS and NMOS devices. * Areas of high electric field concentration eliminated using 45 corners on metal traces. * Supply pin overvoltage prevented with larger ESD clamps between each supply pin and its respective ground.
DC CORRECTNESS AND MAGNETIC FIELD IMMUNITY
Positive and negative logic transitions at the isolator input cause narrow (~1 ns) pulses to be sent to the decoder via the transformer. The decoder is bistable and is, therefore, either set or reset by the pulses, indicating input logic transitions. In the absence of logic transitions at the input for more than 2 s, a periodic set of refresh pulses indicative of the correct input state are sent to ensure dc correctness at the output. If the decoder receives no internal pulses of more than about 5 s, the input side is assumed to be unpowered or nonfunctional, in which case the isolator output is forced to a default state (see Table 10) by the watchdog timer circuit. The limitation on the ADuM340x's magnetic field immunity is set by the condition in which induced voltage in the transformer's receiving coil is sufficiently large to either falsely set or reset the decoder. The following analysis defines the conditions under which this can occur. The 3 V operating condition of the ADuM340x is examined because it represents the most susceptible mode of operation.
Rev. 0 | Page 20 of 24
ADUM3400/ADuM3401/ADuM3402
The pulses at the transformer output have an amplitude greater than 1.0 V. The decoder has a sensing threshold at about 0.5 V, thus establishing a 0.5 V margin in which induced voltages can be tolerated. The voltage induced across the receiving coil is given by V = (-d/dt)rn2; n = 1, 2, ... , N where: is magnetic flux density (gauss). N is the number of turns in the receiving coil. rn is the radius of the nth turn in the receiving coil (cm). Given the geometry of the receiving coil in the ADuM340x and an imposed requirement that the induced voltage be at most 50% of the 0.5 V margin at the decoder, a maximum allowable magnetic field is calculated as shown in Figure 19.
100
MAXIMUM ALLOWABLE MAGNETIC FLUX DENSITY (kgauss)
MAXIMUM ALLOWABLE CURRENT (kA)
The preceding magnetic flux density values correspond to specific current magnitudes at given distances from the ADuM340x transformers. Figure 20 expresses these allowable current magnitudes as a function of frequency for selected distances. As shown, the ADuM340x is extremely immune and can be affected only by extremely large currents operated at high frequency very close to the component. For the 1 MHz example noted, one would have to place a 0.5 kA current 5 mm away from the ADuM340x to affect the component's operation.
1000 DISTANCE = 1m 100
10 DISTANCE = 100mm 1 DISTANCE = 5mm 0.1
10
1
0.01 MAGNETIC FIELD FREQUENCY (Hz)
05983-020
1k
10k
100k
1M
10M
100M
0.1
Figure 20. Maximum Allowable Current for Various Current-to-ADuM340x Spacings
0.01
10k 100k 10M 1M MAGNETIC FIELD FREQUENCY (Hz)
100M
Figure 19. Maximum Allowable External Magnetic Flux Density
For example, at a magnetic field frequency of 1 MHz, the maximum allowable magnetic field of 0.2 kgauss induces a voltage of 0.25 V at the receiving coil. This is about 50% of the sensing threshold and does not cause a faulty output transition. Similarly, if such an event were to occur during a transmitted pulse (and was of the worst-case polarity), it would reduce the received pulse from >1.0 V to 0.75 V--still well above the 0.5 V sensing threshold of the decoder.
05983-019
0.001 1k
Note that at combinations of strong magnetic field and high frequency, any loops formed by printed circuit board traces could induce error voltages sufficiently large enough to trigger the thresholds of succeeding circuitry. Care should be taken in the layout of such traces to avoid this possibility.
Rev. 0 | Page 21 of 24
ADUM3400/ADuM3401/ADuM3402
POWER CONSUMPTION
The supply current at a given channel of the ADuM340x isolator is a function of the supply voltage, the channel's data rate, and the channel's output load. For each input channel, the supply current is given by IDDI = IDDI (Q) IDDI = IDDI (D) x (2f - fr) + IDDI (Q) f 0.5 fr f > 0.5 fr
For each output channel, the supply current is given by IDDO = IDDO (Q)
-3
f 0.5 fr
IDDO = (IDDO (D) + (0.5 x 10 ) x CL x VDDO) x (2f - fr) + IDDO (Q) f > 0.5 fr where: IDDI (D), IDDO (D) are the input and output dynamic supply currents per channel (mA/Mbps). CL is the output load capacitance (pF). VDDO is the output supply voltage (V). f is the input logic signal frequency (MHz); it is half of the input data rate expressed in units of Mbps. fr is the input stage refresh rate (Mbps). IDDI (Q), IDDO (Q) are the specified input and output quiescent supply currents (mA). To calculate the total IDD1 and IDD2 supply current, the supply currents for each input and output channel corresponding to VDD1 and VDD2 are calculated and totaled. Figure 8 provides perchannel input supply current as a function of data rate. Figure 9 and Figure 10 provide per-channel supply output current as a function of data rate for an unloaded output condition and for a 15 pF output condition, respectively. Figure 11 through Figure 15 provide total VDD1 and VDD2 supply current as a function of data rate for ADUM3400/ADuM3401/ADuM3402 channel configurations.
Rev. 0 | Page 22 of 24
ADUM3400/ADuM3401/ADuM3402 OUTLINE DIMENSIONS
10.50 (0.4134) 10.10 (0.3976)
16
9
7.60 (0.2992) 7.40 (0.2913)
1 8
10.65 (0.4193) 10.00 (0.3937)
1.27 (0.0500) BSC 0.30 (0.0118) 0.10 (0.0039) COPLANARITY 0.10 0.51 (0.0201) 0.31 (0.0122)
2.65 (0.1043) 2.35 (0.0925)
0.75 (0.0295) x 45 0.25 (0.0098)
SEATING PLANE
8 0.33 (0.0130) 0 0.20 (0.0079)
1.27 (0.0500) 0.40 (0.0157)
COMPLIANT TO JEDEC STANDARDS MS-013-AA CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN.
Figure 21. 16-Lead Standard Small Outline Package [SOIC_W] Wide Body (RW-16) Dimensions shown in millimeters and (inches)
ORDERING GUIDE
Model ADUM3400ARWZ 2, 3 ADUM3400BRWZ2, 3 ADUM3400CRWZ2, 3 ADuM3401ARWZ2, 3 ADuM3401BRWZ2, 3 ADuM3401CRWZ2, 3 ADuM3402ARWZ2, 3 ADuM3402BRWZ2, 3 ADuM3402CRWZ2, 3
1 2
Temperature Range (C) -40 to +105 -40 to +105 -40 to +105 -40 to +105 -40 to +105 -40 to +105 -40 to +105 -40 to +105 -40 to +105
Number of Inputs, VDD1 Side 4 4 4 3 3 3 2 2 2
Number of Inputs, VDD2 Side 0 0 0 1 1 1 2 2 2
Maximum Data Rate (Mbps) 1 10 90 1 10 90 1 10 90
Maximum Propagation Delay, 5 V (ns) 100 50 32 100 50 32 100 50 32
Maximum Pulse-Width Distortion (ns) 40 3 2 40 3 2 40 3 2
Package Option 1 RW-16 RW-16 RW-16 RW-16 RW-16 RW-16 RW-16 RW-16 RW-16
RW-16 = 16-lead wide body SOIC. Tape and reel are available. The addition of an "-RL" suffix designates a 13" (1,000 units) tape and reel option. 3 Z = Pb-free part.
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ADUM3400/ADuM3401/ADuM3402 NOTES
(c)2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D05985-0-3/06(0)
Rev. 0 | Page 24 of 24

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