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5.0 kv rms dual channel digital isolators data sheet ADUM220N / adum221n / adum225n / adum226n rev. 0 document feedback information furnished by analog devices is believed to be accurate an d 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 i mplication 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 ? 2016 analog devices, inc. all rights reserved. technical support www.analog.com features high common - mode transient immunity: 100 kv/s high robustness to radiated and conducted noise low propagation delay: 13 ns maximum for 5 v operation , 15 ns maximum for 1.8 v operation 150 mbps m ax imum data rate safety and regulatory approvals (pending) ul recognition : 5 0 00 v rms for 1 minute per ul 1577 csa component acceptance notice 5 a vde certificate of conformity din v vde v 0884 - 10 (vde v 0884 - 10): 2006 - 12 v iorm = 849 v peak 1 0 000 v peak surge/ impulse voltage rating cqc certification per gb4943.1 - 2011 backward compatibility ADUM220N0 pin compatible with adum22 1 0 rw - 16 package ADUM220N1 pin compatible with adum2200 rw - 16 package adum221n0 pin compatible with adum2211 rw - 16 package adum221n1 pin compatible with adum2201 rw - 16 package low dynamic power consumption 1.8 v to 5 v level translati on high temperature operation: 125c maximum fail - safe high or low options 8 - lead /16 - lead, rohs compliant soic package s applications general - purpose multichannel isolation industrial field bus isolation general description the ADUM220N / adum221n / adum225n / adum226n 1 are dual - channel digital isolators based on analog devices, inc., i coupler? technology. combining high speed, complementary metal - oxide semiconductor (cmos ) and monolithic air core transform er technology, these isolation components provide outstanding performance characteristics superior to alternatives such as optocoupler devices and other integrated couplers. the maximum propagation delay is 13 ns with a pulse width distortion (pwd) of less than 3 ns at 5 v operation. channel matching is tight at 3.0 ns maximum. the ADUM220N / adum221n / adum225n / adum226n data channels are independent and are available in a variety of configurations wit h a withstand voltage rating of 5.0 kv rms (see the ordering guide ). the devices operate with the supply voltage on either side ranging from 1.8 v to 5 v, providing compatibil - ity with lower voltage systems as well as enabling voltage translation functionality across the isolation barrier. functional block dia gram s figure 1 . figure 2 . figure 3 . figure 4 u nlike other optocoupler alternatives, dc correctness is ensured in the absence of input logic transitions. two different fail - safe options are available, in which the outputs transition to a predeter mined state when the input power supply is not applied or the inputs are disabled. the ADUM220N 0 is pin compatible with the adum22 1 0 rw - 16 package . the ADUM220N1 is pin compatible with the adum2200 rw - 16 package. the adum221n 0 is pin compati - ble with the adum22 1 1 rw - 16 package . the adum221n1 is pin com pati ble with the adum2201 rw - 16 package. 1 protected by u.s. patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329. other patents are pending. 1 2 3 4 5 6 7 8 gnd 1 nic v dd1 v ia v ib nic gnd 1 nic gnd 2 nic v dd2 v oa v ob nic nic gnd 2 ADUM220N 16 15 14 13 12 11 10 9 encode encode decode decode 14 1 16-001 1 2 3 4 5 6 7 8 gnd 1 nic v dd1 v oa v ib nic gnd 1 nic gnd 2 nic v dd2 v ia v ob nic nic gnd 2 adum221n 16 15 14 13 12 11 10 9 decode encode encode decode 14 1 16-002 encode decode encode decode v dd1 v ia v ib gnd 1 v dd2 v oa v ob gnd 2 1 2 3 4 8 7 6 5 adum225n 14 1 16-003 encode decode decode encode v dd1 v oa v ib gnd 1 v dd2 v ia v ob gnd 2 1 2 3 4 8 7 6 5 adum226n 14 1 16-004
ADUM220N/adum221n/adum225n/adum226n data sheet rev. 0 | page 2 of 23 table of contents features .............................................................................................. 1 applications ....................................................................................... 1 general description ......................................................................... 1 functional block diagram s ............................................................. 1 revision history ............................................................................... 2 specifications ..................................................................................... 3 electrical characteristics 5 v operation ................................ 3 electrical characteristics 3.3 v operation ............................ 4 electrical characteristics 2.5 v operation ............................ 6 electrical characteristics 1.8 v operation ............................ 7 insulation and safety relat ed specifications ............................ 9 package characteristics ............................................................... 9 regulatory information ............................................................. 10 din v vde v 0884 - 10 (vde v 0884 - 10) insulation characteristics ............................................................................ 11 recommended operating conditions .................................... 12 absolute maximum rating s ......................................................... 13 esd caution ................................................................................ 13 pin configurations and function descriptions ......................... 15 typical performance characteristics ........................................... 18 theory of operation ...................................................................... 19 overview ..................................................................................... 19 applications information .............................................................. 20 pcb layout ................................................................................. 20 propagation delay related parameters ................................... 20 jitter measurement ..................................................................... 20 insulation lifetime ..................................................................... 20 outline dimensions ....................................................................... 22 ordering guide .......................................................................... 23 revision history 4/ 16 revision 0 : initial version
data sheet ADUM220N/adum221n/adum225n/adum226n rev. 0 | page 3 of 23 specifications electrical character istics 5 v operation all typical specifications are at t a = 25c, v dd1 = v dd2 = 5 v. m inimu m/maximum specifications apply over the entire recommended operation range of 4.5 v v dd1 5.5 v, 4.5 v v dd2 5.5 v, and ? 40c t a + 125c , unless otherwise noted. switching specifications are tested with c l = 15 pf and cmos signal levels, unless ot herwise noted. supply currents are specified with 50% duty cycle signals. table 1. parameter symbol min typ max unit test conditions/comments switching specifications pulse width pw 6.6 ns within pulse width distortion (p wd) limit data rate 150 mbps within pwd limit propagation delay t phl , t plh 4.8 7.2 13 ns 50% input to 50% output pulse width distortion pwd 0.5 3 ns |t plh ? t phl | change vs. temperature 1.5 ps/c propagation delay skew t psk 6. 0 ns between any two units at the same temperature, voltage, and load channel matching codirectional t pskcd 0.5 3.0 ns opposing direction t pskod 0.5 3.0 ns jit ter 380 ps p -p see the jitter measurement section 55 ps rms see the jitter measurement section dc specifications input threshold logic high v ih 0. 7 v ddx v logic low v il 0.3 v ddx v output voltage logic high v oh v ddx ? 0.1 v ddx v i ox 1 = ?20 a, v ix = v ixh 2 v ddx ? 0.4 v ddx ? 0.2 v i ox 1 = ?4 ma, v ix = v ixh 2 logic low v ol 0.0 0.1 v i ox 1 = 20 a, v ix = v ixl 3 0.2 0.4 v i ox 1 = 4 ma, v ix = v ixl 3 input current per channel i i ?10 +0.01 +10 a 0 v v ix v ddx quiescent su pply current ADUM220N / adum225n i dd1 (q) 0.9 1.3 ma v i 4 = 0 (n0), 1 (n1) 5 i dd2 (q ) 1.3 1.8 ma v i 4 = 0 (n0), 1 (n1) 5 i dd1 (q) 6.4 10.0 ma v i 4 = 1 (n0), 0 (n1) 5 i dd2 (q) 1.4 1.9 ma v i 4 = 1 (n0), 0 (n1) 5 adum221n / adum226n i dd1 (q) 1.1 1.6 ma v i 4 = 0 (n 0), 1 (n1) 5 i dd2 (q) 1.1 1.5 m a v i 4 = 0 (n 0), 1 (n1) 5 i dd1 (q) 4.0 5.8 ma v i 4 = 1 (n0), 0 (n1) 5 i dd2 (q) 4.9 6.4 ma v i 4 = 1 (n0), 0 (n1) 5 dynamic supply current dynamic input i ddi (d) 0.01 ma/mbps inputs switching, 50% duty cycle dynamic output i ddo (d) 0.02 ma/mbps inputs switching, 50% duty cycle undervoltage lockout uvlo positive v ddx threshold v ddxuv+ 1.6 v negative v ddx threshold v ddxuv? 1.5 v v ddx hysteresis v ddxuvh 0.1 v
ADUM220N/adum221n/adum225n/adum226n data sheet rev. 0 | page 4 of 23 parameter symbol min typ max unit test conditions/comments ac specifications output r ise/fall time t r /t f 2.5 ns 10% to 90% common - mode transient immunity 6 |cm h | 75 100 kv/s v ix = v ddx , v cm = 1000 v, transient magnitude = 800 v |cm l | 75 100 kv/s v ix = 0 v, v cm = 1000 v, transient magnitude = 800 v 1 i ox is t he cha nnel x output current, where x is a or b . 2 v ixh is the input side logic high. 3 v ixl is the input side logic low. 4 v i is the voltage input. 5 n0 refers to the ADUM220N0 / adum221n0 / adum225n0 / adum226n0 models, and n 1 refers to the ADUM220N1 / adum221n1 / adum225n1 / adum226n1 model s . see the ordering guide section. 6 |cm h | is t he maximum common - mode voltage slew rate that can be sustained while maintaining the voltage output (v o ) > 0.8 v ddx . |cm l | is the maximum common - mode voltage slew rate that can be sustained while maintaining v o > 0.8 v. the common - mode voltage slew rates a pply to both rising and falling common - mode voltage edges. table 2 . total supply current vs. data throughput 1 mbps 25 mbps 100 mbps parameter symbol min typ max min typ max min typ max unit supply current ADUM220N / adum225n supply current side 1 i dd1 3.7 6.8 4.2 7.2 6.2 9.3 ma supply current side 2 i dd2 1.4 2.0 2.2 3.2 4.8 8.1 ma adum221n / adum226n supply current side 1 i dd1 2.6 4.5 3.2 5.4 5.4 8.2 ma supply current side 2 i dd2 3.0 4.9 3.7 5.9 5.9 8.6 ma electrical character istics 3.3 v operation all typical specifications are at t a = 25c, v dd1 = v dd2 = 3.3 v. minimum/maximum specifications apply over the entire recommended operation range: 3.0 v v dd1 3.6 v, 3.0 v v dd2 3.6 v, and ? 40c t a + 12 5c, unless otherwise noted. switching specifications are tested with c l = 15 pf and cmos signal levels, unless otherwise noted. supply currents are specified with 50% duty cycle signals. table 3. parameter symbol min typ max unit test conditions/comments switching specifications pulse width pw 6.6 ns within pwd limit data rate 150 mbps within pwd limit propagation delay t phl , t plh 4.8 6.8 14 ns 50% input to 50% output pulse width distortion pwd 0.7 3 ns |t plh ? t phl | change vs. temperature 1.5 ps/c propagation delay skew t psk 7.0 ns between any two units at the same temperature, voltage, and load channel matching codirectional t pskcd 0.7 3.0 ns opposing direction t pskod 0.7 3.0 ns jit ter 290 ps p -p see the jitter measurement section 45 ps rms see the jitter measurement section dc specifications input threshold logic high v ih 0.7 v ddx v logic low v il 0.3 v ddx v
data sheet ADUM220N/adum221n/adum225n/adum226n rev. 0 | page 5 of 23 parameter symbol min typ max unit test conditions/comments output voltage logic high v oh v ddx ? 0.1 v ddx v i ox 1 = ?20 a, v ix = v ixh 2 v ddx ? 0.4 v ddx ? 0.2 v i ox 1 = ?2 ma, v ix = v ixh 2 logic low v ol 0.0 0.1 v i ox 1 = 20 a, v ix = v ixl 3 0.2 0.4 v i ox 1 = 2 ma, v ix = v ixl 3 input current per channel i i ?10 +0.01 +10 a 0 v v ix v ddx quiescent su pply current ADUM220N / adum225n i dd1 (q) 0.8 1.3 ma v i 4 = 0 (n0), 1 (n1) 5 i dd2 (q ) 1.2 1.8 ma v i 4 = 0 (n0), 1 (n1) 5 i dd1 (q) 6.3 9.7 ma v i 4 = 1 (n0), 0 (n1) 5 i dd2 (q) 1.3 1.8 ma v i 4 = 1 (n0), 0 (n1) 5 adum221n / adum226n i dd1 (q) 1.0 1.6 ma v i 4 = 0 (n0 ), 1 (n1) 5 i dd2 (q) 1.0 1.5 ma v i 4 = 0 (n0 ), 1 (n1) 5 i dd1 (q) 3.9 5.8 ma v i 4 = 1 (n0), 0 (n1) 5 i dd2 (q) 4.8 6.4 ma v i 4 = 1 (n0), 0 (n1) 5 dynamic supply current inputs switching, 50% duty cycle dynamic input i ddi (d) 0.01 ma/mbps d ynamic output i ddo (d) 0.01 ma/mbps undervoltage lockout uvlo positive v ddx threshold v ddxuv+ 1.6 v negative v ddx threshold v ddxuv? 1.5 v v ddx hysteresis v ddxuvh 0.1 v ac specifications output rise/fall time t r /t f 2.5 ns 10 % to 90% common - mode transient immunity 6 |cm h | 75 100 kv/s v ix = v ddx , v cm = 1000 v, transient magnitude = 800 v |cm l | 75 100 kv/s v ix = 0 v, v cm = 1000 v, transient magnitude = 800 v 1 i ox is t he channel x outp ut current , where x is a or b . 2 v ixh is the input side logic high. 3 v ixl is the input side logic low. 4 v i is the voltage input. 5 n0 refers to the ADUM220N0 / adum221n0 / adum225n0 / adum226n0 models, and n 1 refers to the ADUM220N1 / adum221n1 / adum225n1 / adum226n1 model s . see the ordering guide section. 6 |cm h | is the maximum common - mode voltage slew rate that can be sustained while maintaining v o > 0.8 v ddx . |cm l | is the maximum common - mode voltage slew rate that can be sustained while maintaining v o > 0.8 v. the common - mode voltage slew rates apply to both rising and falling common - mode voltage edges. table 4 . total supply current vs. data throughput 1 mbps 25 mbps 100 mbps parameter symbol min typ max min typ max min typ max unit supply current ADUM220N / adum225n supply current side 1 i dd1 3.6 6.2 4.0 6.7 5.6 9.1 ma supply current side 2 i dd2 1.3 1.9 2.1 3.1 4.4 6.8 ma adum221n / adum226n supply current side 1 i dd1 2.5 4.6 3.0 5.5 5.0 8.1 ma supply current side 2 i dd2 2.9 4.8 3.5 5.8 5.4 8.3 ma
ADUM220N/adum221n/adum225n/adum226n data sheet rev. 0 | page 6 of 23 electrical character istics 2.5 v operation all typical specifications are at t a = 25c, v dd1 = v dd2 = 2.5 v. minimum/maximum specifications apply over the entire recommended operation range: 2.25 v v dd1 2.75 v, 2.25 v v dd2 2.75 v, ? 40c t a + 125c, unless otherwise noted. swit ching specifications are tested with c l = 15 pf and cmos signal levels, unless otherwise noted. supply currents are specified with 50% duty cycle signals. table 5. parameter symbol min typ max unit test conditions/comments switchi ng specifications pulse width pw 6.6 ns within pwd limit data rate 150 mbps within pwd limit propagation delay t phl , t plh 5.0 7.0 14 ns 50% input to 50% output pulse width distortion pwd 0.7 3 ns |t plh ? t phl | change vs. temperature 1.5 ps/c propagation delay skew t psk 7.0 ns between any two units at the same temperature, voltage, and load channel matching codirectional t pskcd 0.7 3.0 ns opposing direction t pskod 0.7 3.0 ns jitt er 320 ps p -p see the jitter measurement section 65 ps rms see the jitter measurement section dc specifications input threshold logic high v ih 0.7 v ddx v logic low v il 0.3 v ddx v output voltage logic high v oh v ddx ? 0.1 v ddx v i ox 1 = ?20 a, v ix = v ixh 2 v ddx ? 0.4 v ddx ? 0.2 v i ox 1 = ?2 ma, v ix = v ixh 2 logic low v ol 0.0 0.1 v i ox 1 = 20 a, v ix = v ixl 3 0.2 0.4 v i ox 1 = 2 ma, v ix = v ixl 3 input current per channel i i ?10 +0.01 +10 a 0 v v ix v ddx quiescent su pply current ADUM220N / adum225n i dd1 (q) 0.8 1.2 ma v i 4 = 0 (n0), 1 (n1) 5 i dd2 (q ) 1.2 1.8 ma v i 4 = 0 (n0), 1 (n1) 5 i dd1 (q) 6.2 9.5 ma v i 4 = 1 (n0), 0 (n1) 5 i dd2 (q) 1.3 1.8 ma v i 4 = 1 (n0), 0 (n1) 5 adum221n / adum226n i dd1 (q) 1.0 1.5 ma v i 4 = 0 (n0 ), 1 (n1) 5 i dd2 (q) 1.0 1.4 ma v i 4 = 0 (n 0), 1 (n1) 5 i dd1 (q) 3.9 5.8 ma v i 4 = 1 (n0), 0 (n1) 5 i dd2 (q) 4.8 6.4 ma v i 4 = 1 (n0), 0 (n1) 5 dynamic supply current inputs switching, 50% duty cycle dynamic input i ddi (d) 0.01 ma/mbps d ynamic output i ddo (d) 0.01 ma/mbps undervoltage lockout positive v ddx threshold v ddxuv+ 1.6 v negative v ddx threshold v ddxuv? 1.5 v v ddx hysteresis v ddxuvh 0.1 v
data sheet ADUM220N/adum221n/adum225n/adum226n rev. 0 | page 7 of 23 parameter symbol min typ max unit test conditions/comments ac specifications output rise/fall ti me t r /t f 2.5 ns 10% to 90% common - mode transient immunity 6 |cm h | 75 100 kv/s v ix = v ddx , v cm = 1000 v, transient magnitude = 800 v |cm l | 75 100 kv/s v ix = 0 v, v cm = 1000 v, transient magnitude = 800 v 1 i ox is t he channe l x o utput current , where x is a or b . 2 v ixh is the input side logic high. 3 v ixl is the input side logic low. 4 v i is the voltage input. 5 n0 refers to the ADUM220N0 / adum221n0 / adum225n0 / adum226n0 models, and n 1 refers to the ADUM220N1 / adum221n1 / adum225n1 / adum226n1 model s . see the ordering guide section. 6 |cm h | is the maximum common - mode voltage slew rate that can be sustained while maintaining v o > 0.8 v ddx . |cm l | is the maximum common - mode voltage slew rate that can be sustained while maintain ing v o > 0.8 v. the common - mode voltage slew rates apply to both rising and falling common - mode voltage edges. table 6 . total sup ply current vs. data throughput 1 mbps 25 mbps 100 mbps parameter symbol min typ max min typ max min typ max unit supply current ADUM220N / adum225n supply current side 1 i dd1 3.5 6.2 3.9 6.6 5.4 9.0 ma supply current side 2 i dd2 1.3 1.9 1.9 2.8 3.6 5.8 ma adum221n / adum226n supply current side 1 i dd1 2.4 4.7 2.9 5.5 4.5 8.0 ma supply current side 2 i dd2 2.9 4.9 3.3 5.7 4.9 7.7 ma electrical c haracteristics 1.8 v operation all typical specifications are at t a = 25c, v dd1 = v dd2 = 1.8 v. minimum/maximum specifications apply over the entire recommended operation range: 1.7 v v dd1 1.9 v, 1.7 v v dd2 1.9 v, and ? 40c t a + 125c , unless o therwise noted. switching specifications are tested with c l = 15 pf and cmos signal levels, unless otherwise noted. supply currents are specified with 50% duty cycle signals. table 7. parameter symbol min typ max unit test conditio ns/comments switching specifications pulse width pw 6.6 ns within pwd limit data rate 150 mbps within pwd limit propagation delay t phl , t plh 5.8 8.7 15 ns 50% input to 50% output pulse width distortion pwd 0.7 3 ns |t plh ? t phl | change vs. temperature 1.5 ps/c propagation delay skew t psk 7.0 ns between any two units at the same temperature, voltage, and load channel matching codirectional t pskcd 0.7 3.0 ns opposing direction t pskod 0.7 3.0 ns jit ter 630 ps p -p see the jitter measurement section 190 ps rms see the jitter measurement section dc specifications input threshold logic high v ih 0.7 v ddx v logic low v il 0.3 v ddx v output voltage logic high v oh v ddx ? 0.1 v ddx v i ox 1 = ?20 a, v ix = v ixh 2 v ddx ? 0.4 v ddx ? 0.2 v i ox 1 = ?2 ma, v ix = v ixh 2 logic low v ol 0.0 0.1 v i ox 1 = 20 a, v ix = v ixl 3 0.2 0.4 v i ox 1 = 2 ma, v ix = v ixl 3 input current per channel i i ?10 +0.01 +10 a 0 v v ix v ddx
ADUM220N/adum221n/adum225n/adum226n data sheet rev. 0 | page 8 of 23 parameter symbol min typ max unit test conditio ns/comments quiescent s upply current ADUM220N / adum225n i dd1 (q) 0.7 1.2 ma v i 4 = 0 (n0), 1 (n1) 5 i dd2 ( q) 1.2 1.8 ma v i 4 = 0 (n0), 1 (n1) 5 i dd1 (q) 6.2 9.6 ma v i 4 = 1 (n0), 0 (n1) 5 i dd2 (q) 1.3 1.8 ma v i 4 = 1 (n0), 0 (n1) 5 adum221n / adum226n i dd1 (q) 1.0 1.5 ma v i 4 = 0 (n 0), 1 (n1) 5 i dd2 (q) 1.0 1.4 m a v i 4 = 0 (n 0), 1 (n1) 5 i dd1 (q) 3.8 5.8 ma v i 4 = 1 (n0), 0 (n1) 5 i dd2 (q) 4.7 6.4 ma v i 4 = 1 (n0), 0 (n1) 5 dynamic supply current inputs switching, 50% duty cycle dynamic input i ddi (d) 0.01 ma/mbps dynamic output i ddo (d) 0.01 ma/mbps undervoltage lockout uvlo positive v ddx threshold v ddxuv+ 1.6 v negative v ddx threshold v ddxuv? 1.5 v v ddx hysteresis v ddxuvh 0.1 v ac specifications output rise/fall time t r /t f 2.5 ns 10% to 90% common - mode transient immunity 6 |cm h | 75 100 kv/s v ix = v ddx , v cm = 1000 v, transient magnitude = 800 v |cm l | 75 100 kv/s v ix = 0 v, v cm = 1000 v, transient magnitude = 800 v 1 i ox is t he channel x o utput current , where x is a or b . 2 v ixh is the input side logic high. 3 v ixl is the input side logic low. 4 v i is the vo ltage input. 5 n0 refers to the ADUM220N0 / adum221n0 / adum225n0 / adum226n0 models, and n 1 refers to the ADUM220N1 / adum221n1 / adum225n1 / adum226n1 model s . see the ordering guide section. 6 |cm h | is the maximum common - mode voltage slew rate that can be sustained while maintaining v o > 0.8 v ddx . |cm l | is the maximum common - mode voltage slew rate that can b e sustained while maintaining v o > 0.8 v. the common - mode voltage slew rates apply to both rising and falling common - mode voltage edges. table 8 . total supply current vs. d ata throughput 1 mbps 25 mbps 100 mbps parameter symbol min typ max min typ max min typ max unit supply current ADUM220N / adum225n supply current side 1 i dd1 3.4 6.0 3.8 6.4 5.2 8.4 ma supply current side 2 i dd2 1.2 1.8 1.8 2.8 3.6 5.8 ma adum221n / adum226n supply current side 1 i dd1 2.4 4.7 2.8 5.5 4.4 7.8 ma supply current side 2 i dd2 2.8 4.8 3.2 5.6 4.8 7.9 ma
data sheet ADUM220N/adum221n/adum225n/adum226n rev. 0 | page 9 of 23 insulation and safet y related specifications for additional information, see www.analog.com/icouplersafety . table 9. ADUM220N / adum221n parameter symbol value unit test conditions/comments rated dielectric insulation voltage 5000 v rms 1- minute duration minimum ex ternal air gap (clearance) l (i 01) 7.8 mm min measured from input terminals to output terminals, shortest distance through air minimum external tracking (creepage) l (i 02) 7.8 mm min measured from input terminals to output terminals, shortest distance pat h along body minimum clearance in the plane of the printed circuit board (pcb clearance) l (pcb) 8.3 mm min measured from input terminals to output terminals, shortest distance through air, line of sight, in the pcb mounting plane minimum internal gap (i nternal clearance) 25.5 m min insulation distance through insulation tracking resistance (comparative tracking index) cti > 400 v din iec 112 /vde 0303 part 1 material group ii material group (din vde 0110, 1/89 , table 1) table 10. adum225n / adum226n parameter symbol value unit test conditions/comments rated dielectric insu lation voltage 5000 v rms 1 - minute duration minimum external air gap (clearance) l (i 01) 8.3 mm min measured from input terminals to output terminals, shortest distance through air minimum external tracking (creepage) l (i 02) 8.3 mm min measured from in put terminals to output terminals, shortest distance path along body minimum clearance in the plane of the printed circuit board (pcb clearance) l (pcb) 8.3 mm min measured from input terminals to output terminals, shortest distance through air, line of s ight, in the pcb mounting plane minimum internal gap (internal clearance) 25.5 m min insulation distance through insulation tracking resistance (comparative tracking index) cti > 400 v din iec 112 /vde 0303 part 1 material group ii material group (din vde 0110, 1/89 , table 1) package characterist ics table 11. ADUM220N / adum221n parameter symbol min typ max unit test conditions/comments resistance (inp ut to output) 1 r i- o 10 13 capacitance (input to output) 1 c i- o 2.2 pf f = 1 mhz input capacitance 2 c i 4.0 pf ic junction to ambient thermal resistance ja 45 c/w thermocouple located at center of package underside 1 these devices are considered 2 - terminal devices: pin 1 through pin 8 are shorted together, and pin 9 through pin 16 a re shorted together. 2 input capacitance is from any input data pin to ground. tab le 12. adum225n / adum226n parameter symbol min typ max unit test conditions /comments resistance (input to output) 1 r i- o 10 13 capacitance (input to output) 1 c i- o 2.2 pf f = 1 mhz input capacitance 2 c i 4.0 pf ic junction to ambient thermal resistance ja 80 c/w thermocouple located at center of package underside 1 these devices are considered 2 - terminal devices: pin 1 through pin 4 are shorted together, and pin 5 through pin 8 are shorted together. 2 input capacitance is from any input data pin to ground.
ADUM220N/adum221n/adum225n/adum226n data sheet rev. 0 | page 10 of 23 re gulatory information see table 18 and table 19 and the insulation lifetime section for details regarding recommended maximum work i ng voltages for specific cross isolation waveforms and insulation levels . the ADUM220N / adum221n a re approved or pending approval by the organizations listed in table 13. table 13. ul (pending) csa (pending) vde (pending) cqc (pending) recognized under ul 1577 component recognition pro gram 1 approved under csa component acceptance notice 5a din v vde v 0884 - 10 (vde v 0884- 10):2006-12 2 certified by cqc11 -471543-2012 single protection, 5000 v rms isolation voltage csa 60950 -1- 07+a1+a2 and iec 60950-1 second e dition +a1+a2 : reinforced ins ulation, 849 v peak, v iosm = 10 ,000 v peak gb4943.1 -2011 basic insulation at 780 v rms ( 1103 v peak) basic insulation 849 v peak, v iosm = 16 ,000 v peak basic insulation at 780 v rms (1103 v peak) reinforced insulation at 390 v rms ( 552 v peak) dou ble protection, 5000 v rms isolation voltage iec 60601 -1 edition 3.1: reinforced insulation at 389 v rms (552 v peak) basic insulation (1 means of patient protection ( mopp ) ), 490 v rms ( 686 v peak) reinforced insulation (2 mopp), 238 v rms (325 v p eak) csa 61010 - 1 - 12 and iec 61010 - 1 third edition : basic insulation at 300 v rms mains, 780 v secondary ( 1103 v peak) reinforced insulation at: 300 v rms mains, 390 v secondary ( 552 v peak) file e 214100 file 205078 file 2471900 - 4880 - 0001 fi le (pending) 1 in accordance with ul 1577, e ach ADUM220N / adum221n is proof tested by applyi ng an insulation test voltage 6000 v rms for 1 sec . 2 in accordance with din v vde v 0884 - 10 , each ADUM220N / adum221n is proof tested by applying a n insulation test voltage 1592 v peak for 1 sec (partial discharge detection limit = 5 pc). the * marking branded on the component designates din v vde v 0884 - 10 approval. the adum225n / adum226n are approved or pending approval by the organizations listed in table 14. table 14. ul (pending) csa (pending) vde (pending) cqc (pending) ul 1577 component recognition program 1 approved under csa component acceptance notice 5a din v vde v 0884 - 10 (vde v 0884- 10):2006-12 2 certified by cqc11 -471543-2012 single protection, 5000 v rms isolation voltage csa 60950 -1- 07+a1+a2 and iec 60950-1 second e dition +a1+a2 : reinforced insulation, 849 v peak, v iosm = 10,000 v peak gb4943.1 -2011 basic insulation at 800 v rms ( 1131 v peak) basic insulation 849 v peak, v iosm = 16 ,000 v peak basic insulation at 800 v rms (1131 v peak) reinforced insulation at 400 v rms ( 565 v peak) double protection, 5000 v rms isolation voltage iec 60601 - 1 edition 3.1 : reinfo rced insulation at 400 v rms ( 565 vpeak) basic insulation ( 1 mopp), 500 v rms ( 707 v peak) reinforced insulation ( 2 mopp), 250 v rms ( 1414 v peak) csa 61010 -1- 12 and iec 61010- 1 third edition : basic insulation at 300 v rms mains, 800 v second ary ( 1089 v peak) reinforced insulation at: 300 v rms mains, 400 v secondary ( 565 v peak) file e 214100 file 205078 file 2471900 - 4880 - 0001 file (pending) 1 in accordance with ul 1577, e ach adum225n / adum226n is proof tested by applying an insulation test voltage 6000 v rms for 1 se c. 2 in accordance with din v vde v 0884 - 10 , each adum225n / adum226n is proof tested by applying a n insulation test voltage 1592 v peak for 1 sec (partial discharge detection limit = 5 pc). the * marking branded on the component designates din v vde v 0884 - 10 approval.
data sheet ADUM220N/adum221n/adum225n/adum226n rev. 0 | page 11 of 23 din v vde v 0884 - 10 (vde v 0884- 10) insulation character istics these ADUM220N / adum221n / adum225n / adum226n isolators are suitable for reinforced electrical isolation only within the safety limit data. protective circuits ensure the maintenance of the safety data. the * marking on packages denotes din v vde v 0884 - 10 approval. table 15. description test conditions/comments symbol characteristic unit installation classification per din vde 0110 for rated mains voltage 150 v rms i to iv for rated mains voltage 300 v rms i to iv for rated mains voltage 6 00 v rms i to iv climatic classification 40/ 10 5/21 pollution degree per din vde 0110 , table 1 2 maximum working insulation voltage v iorm 849 v p eak input to output test voltage, method b 1 v iorm 1.875 = v pd (m) , 100% production test, t ini = t m = 1 sec, partial discharge < 5 pc v pd (m) 1592 v peak input to output test voltage, method a after environmental tests subgroup 1 v iorm 1.5 = v pd (m) , t ini = 60 sec, t m = 10 sec, partial discharge < 5 pc v pd (m) 1274 v peak after input and/or safety test subgroup 2 and subgroup 3 v iorm 1.2 = v pd (m) , t ini = 60 sec, t m = 10 sec, partial discharge < 5 pc 1019 v peak highest allowable overvo ltage v iotm 7000 v peak surge isolation voltage basic v peak = 16 kv, 1.2 s rise time, 50 s, 50% fall time v iosm 16,000 v peak surge isolation voltage reinforced v peak = 16 kv, 1.2 s rise time, 50 s, 50% fall time v iosm 10,000 v peak safety limit ing values maximum value allowed in the event of a failure (see figure 5 or figure 6 ) maximum junction temperature t s 150 c total power dissipation at 25 c p s ADUM220N / adum221n 2.78 w adum225n / adum226n 1.56 w insulation resistance at t s v io = 500 v r s >10 9 figure 5 . ADUM220N / adum221n thermal derating curve, dependence of safety limiting values with ambient temperature per din v vde v 0884 - 10 figure 6 . adum225n / adum226n thermal derating curve, dependence of safety limiting values with ambient temperature per din v vde v 0884 - 10 3.0 2.5 2.0 1.5 1.0 0.5 0 0 50 100 150 200 safety limiting power (w) ambient temperature (c) 14 1 16-005 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 0 50 100 150 200 safety limiting power (w) ambient temperature (c) 14 1 16-006
ADUM220N/adum221n/adum225n/adum226n data sheet rev. 0 | page 12 of 23 recommended operatin g conditions table 16. parameter symbol rating operating tempera ture t a ? 40 c to + 125 c supply voltages v dd1 , v dd2 1.7 v to 5.5 v input signal rise and fall times 1.0 ms
data sheet ADUM220N/adum221n/adum225n/adum226n rev. 0 | page 13 of 23 absolute maximum rat ings t a = 25 c, unless otherwise noted. table 17. parameter rating storage temperature (t st ) range ? 65 c to + 150 c ambient operating temperature (t a ) range ? 40 c to + 125 c supply voltages (v dd1 , v dd2 ) ? 0.5 v to + 7.0 v input voltages (v ia , v ib ) ?0.5 v to v ddi 1 + 0.5 v output voltages (v oa , v ob ) ?0.5 v to v ddo 2 + 0.5 v average output current per pin 3 side 1 output current (i o1 ) ? 10 ma to + 10 ma side 2 output current (i o2 ) ? 10 ma to + 10 ma common - mode transients 4 ? 150 kv/ s to + 150 kv/ s 1 v ddi is the input side supply voltage. 2 v ddo is the output side supply voltage. 3 see figure 5 or figure 6 for the maximum rated current values for various temperatures. 4 this term re fers to the common - mode transients across the insulation barrier. common - mode transie nts exceeding the absolute maximum ratings may cause latch - up or permanent damage. stresses at or above those listed under absolute maximum ratings may cause permanent damage to the product. this is a stress rating only; functional operation of the product at these or any other conditions above those indicated in the operational section of this specification is not implied. operation beyond the maximum operating conditions for extended periods may affect product reliability. esd caution table 18. ADUM220N / adum221n maximum continuous working voltage 1 parameter rating cons traint ac voltage bipolar waveform basic insulation 849 v peak 50- year minimum insulation lifetime reinforced insulation 767 v peak lifetime limited by package creepage maximum approved working voltage per iec 60950 -1 2 unipolar waveform basic insulation 1698 v peak 50 - year minimum insulation lifetime reinforced insulation 885 v peak lifetime limited by package creepage maximum approved working voltage per iec 60950 -1 2 dc voltage lifetime limited by package creepage maximum approved working v oltage per iec 60950 -1 2 basic insulation 1092 v peak reinforced insulation 543 v peak 1 maximum continuous working voltage refers to the continuous voltage magnitude imposed across the isolation barrier. see the insulation lifetime section for more details. 2 insulation lifetime for the specified test condition is greater than 50 years. table 19. adum225n / adum226n maximum continuous working voltage 1 parameter rating constraint ac voltage bipolar waveform basic insulation 849 v peak 50- year minimum insulation lifetime reinfo rced insulation 789 v peak lifetime limited by package creepage maximum approved working voltage per iec 60950 -1 2 unipolar waveform 50- year minimum insulation lifetime basic insulation 1698 v peak reinforced insulation 849 v peak dc voltage lifetim e limited by package creepage maximum approved working voltage per iec 60950 -1 2 basic insulation 1118 v peak reinforced insulation 558 v peak 1 maximum continuous working voltage r efers to the continuous voltage magnitude imposed across the isolation barrier. see the insulation lifetime section for more details. 2 insulation lifetime for the specified test condition is greater than 50 years.
ADUM220N/adum221n/adum225n/adum226n data sheet rev. 0 | page 14 of 23 t ruth table table 20. ADUM220N / adum221n / adum225n / adum226n truth table (positive logic) v ix input 1 , 2 v ddi state 2 v ddo state 2 default low (n0), v ox output 1 , 2 , 3 default high (n 1 ), v ox output 1 , 2 , 3 test conditions/ comments l ow powered powered l ow l ow normal operation h igh powered powered h igh h igh normal operation x 4 unpowered powered l ow h igh fail - safe output x 4 powered unpowered indeterminate indeterminate fail - safe output 1 x means dont care . 2 v ix and v ox refer to the input and output signa ls of a given channel ( a or b ). v ddi and v ddo refer to the supply voltages on the input and output sides of the given channel, respectively. 3 n0 refers to the ADUM220N0 / adum221n0 / adum225n0 / adum226n0 models, and n 1 refers to the ADUM220N1 / adum221n1 / adum225n1 / adum226n1 model s . see the ordering guide section. 4 input pins (v ix ) on the same side as an unpowered supply must be in a low state to avoid powering the device through its esd protection circuitry.
data sheet ADUM220N/adum221n/adum225n/adum226n rev. 0 | page 15 of 23 pin configurations a nd function descript ions figure 7 . ADUM220N pin configuration table 21. ADUM220N pin function descriptions 1 pin no. mnemonic description 1 gnd 1 ground 1. ground reference for isolator side 1. p in 1 and pin 7 are internally connected, and connecting both to gnd 1 is recommended. 2 n i c no internal connection. leave this pin floating. 3 v dd1 supply voltage for isolator side 1. 4 v ia logic input a. 5 v ib logic input b. 6 n i c no internal connect ion . leave this pin floating. 7 gnd 1 ground 1. ground reference for isolator side 1. pin 1 and pin 7 are internally connected, and connecting both to gnd 1 is recommended. 8 n i c no internal connection . leave this pin floating. 9 gnd 2 ground 2. ground ref erence for isolator side 2. pin 9 and pin 16 are internally connected, and connecting both to gnd 2 is recommended. 10 n i c no internal connection . leave this pin floating. 11 n i c no internal connection . leave this pin floating. 12 v ob logic output b. 13 v oa logic output a. 14 v dd2 supply voltage for isolator side 2. 15 n i c no internal connection. leave this pin floating. 16 gnd 2 ground 2. ground reference for isolator side 2. pin 9 and pin 16 are internally connected, and connecting both to gnd 2 is re commended. 1 reference the an - 1109 application note for specific layout guidelines. gnd 1 1 nic 2 v dd1 3 v ia 4 gnd 2 16 nic 15 v dd2 14 v oa 13 v ib 5 v ob 12 nic 6 nic 11 gnd 1 7 nic 10 nic 8 gnd 2 9 notes 1. nic = no internal connection. 2. pin 1 and pin 7 are internally connected, and connecting both to gnd 1 is recommended. 3. pin 9 and pin 16 are internally connected, and connecting both to gnd 2 is recommended. ADUM220N top view (not to scale) 14 1 16-007
ADUM220N/adum221n/adum225n/adum226n data sheet rev. 0 | page 16 of 23 figure 8 . adum221n pin configuration table 22. adum221n pin function descriptions 1 pin no. mnemonic description 1 gnd 1 ground 1. ground reference for isolator side 1. pin 1 and pin 7 are internally connected, and connecting both to gnd 1 is recommended. 2 nic no internal connecti on. leave this pin floating. 3 v dd1 supply voltage for isolator side 1. 4 v oa logic output a. 5 v ib logic input b. 6 nic no internal connection. leave this pin floating. 7 gnd 1 ground 1. ground reference for isolator side 1. pin 1 and pin 7 are inte rnally connected, and connecting both to gnd 1 is recommended. 8 n i c no internal connection. leave this pin floating. 9 gnd 2 ground 2. ground reference for isolator side 2. pin 9 and pin 16 are internally connected, and connecting both to gnd 2 is recommen ded. 10 nic no internal connection. leave this pin floating. 11 nic no internal connection. leave this pin floating. 12 v ob logic output b. 13 v ia logic input a. 14 v dd2 supply voltage for isolator side 2. 15 nic no internal connection. leave this pi n floating. 16 gnd 2 ground 2. ground reference for isolator side 2. pin 9 and pin 16 are internally connected, and connecting both to gnd 2 is recommended. 1 reference the an - 1109 application note for specific layout guidelines. figure 9 . adum225n pin configuration table 23. adum225n pin function descriptions 1 pin no. mnemonic description 1 v dd1 supply voltage for isol ator side 1. 2 v ia logic input a. 3 v ib logic input b. 4 gnd 1 ground 1 . ground reference for isolator side 1. 5 gnd 2 ground 2 . ground reference for isolator side 2. 6 v ob logic output b. 7 v oa logic output a. 8 v dd2 supply voltage for isolator sid e 2. 1 reference the an - 1109 application note for s pecific layout guidelines. gnd 1 1 nic 2 v dd1 3 v oa 4 gnd 2 16 nic 15 v dd2 14 v ia 13 v ib 5 v ob 12 nic 6 nic 11 gnd 1 7 nic 10 nic 8 gnd 2 9 notes 1. nic = no internal connection. 2. pin 1 and pin 7 are internally connected, and connecting both to gnd 1 is recommended. 3. pin 9 and pin 16 are internally connected, and connecting both to gnd 2 is recommended. adum221n top view (not to scale) 14 1 16-008 1 8 2 7 3 6 4 5 top view (not to scale) adum225n v dd1 v ia v ib gnd 1 v dd2 v oa v ob gnd 2 14 1 16-009
data sheet ADUM220N/adum221n/adum225n/adum226n rev. 0 | page 17 of 23 figure 10 . adum226n pin configuration table 24. adum226n pin function descriptions 1 pin no. mnemonic description 1 v dd1 supply voltage for isolator side 1. 2 v oa logic output a. 3 v ib logic input b. 4 gnd 1 ground 1 . ground reference for isolator side 1. 5 gnd 2 ground 2. ground reference for isolator side 2. 6 v ob logic output b. 7 v ia logic input a. 8 v dd2 supply voltage for isolator side 2. 1 reference the an - 1109 application note for specific layout guidelines. 1 8 2 7 3 6 4 5 top view (not to scale) adum226n v dd1 v oa v ib gnd 1 v dd2 v ia v ob gnd 2 14 1 16-010
ADUM220N/adum221n/adum225n/adum226n data sheet rev. 0 | page 18 of 23 typical performance characteristics figure 11 . ADUM220N / adum225n i dd1 supply current vs. data rate at various voltages figure 12 . ADUM220N / adum225n i dd2 supply current vs. data rate at various voltages figure 13 . propagation delay for logic high outp ut (t plh ) vs. temperature at various voltages figure 14 . adum221n / adum226n i dd1 supply current vs. data rate at various voltages figure 15 . adum221n / adum226n i dd2 supply current vs. data rate at various voltages figure 16 . propagation delay for logic low output (t phl ) vs. temperature at various voltages 10 0 1 2 3 4 5 6 7 8 9 0 20 40 60 80 100 120 140 160 i dd1 supply current (ma) data rate (mbps) 5v 3.3v 2.5v 1.8v 14 1 16-0 1 1 10 0 1 2 3 4 5 6 7 8 9 0 20 40 60 80 100 120 140 160 i dd2 supply current (ma) data rate (mbps) 5v 3.3v 2.5v 1.8v 14 1 16-012 14 0 2 4 6 8 10 12 ?40 ?20 0 20 40 60 80 100 120 140 propagation delay, t plh (ns) temperature (c) 5v 3.3v 2.5v 1.8v 14 1 16-013 10 0 1 2 3 4 5 6 7 8 9 0 20 40 60 80 100 120 140 160 i dd1 supply current (ma) data rate (mbps) 5v 3.3v 2.5v 1.8v 14 1 16-014 10 0 1 2 3 4 5 6 7 8 9 0 20 40 60 80 100 120 140 160 i dd2 supply current (ma) data rate (mbps) 5v 3.3v 2.5v 1.8v 14 1 16-015 14 0 2 4 6 8 10 12 ?40 ?20 0 20 40 60 80 100 120 140 propagation delay, t phl (ns) temperature (c) 5v 3.3v 2.5v 1.8v 14 1 16-016
data sheet ADUM220N/adum221n/adum225n/adum226n rev. 0 | page 19 of 23 theory of operation overview the ADUM220N / adum221n / adum225n / adum226n use a high frequency carrier to transmit data across the isolation barrier using i coupler chip scale transformer coils separated by layers of polyimide isolation . using an on / off keying (ook) technique and the differential architecture shown in figure 17 and figure 18 , the ADUM220N / adum221n / adum225n / adum226n have very low propagation delay and high speed. internal regulators and input/output design techniques allow logic and supply voltages over a wide range from 1.7 v to 5.5 v, offering voltage translation of 1.8 v, 2.5 v, 3.3 v, and 5 v logic. the architecture is designed for high common - mode transient immunity and high immunity to electrical noise and magnetic interference. radiated emissions are minimized with a spread spectrum ook carrier and other techniques. figure 17 illustrates the waveforms for models of the ADUM220N / adum221n / adum225n / adum226n that have the condi tion of the fail - safe output state equal to low, where the carrier waveform is off when the input state is low. if the input side is off or not operating, the fail - safe output state of low ( ADUM220N0 / adum221n0 / adum225n0 / adum226n0 models ) sets the output to low. for the ADUM220N / adum221n / adum225n / adum226n that have a fail - safe output state of high, figure 18 illustrates the conditions where the carrier waveform is off wh en the input state is high. when the input side is off or not operating, the fail - safe output state of high ( ADUM220N1 / adum221n1 / adum225n1 / adum226n1 ) sets the output to high. see the ordering guide for the model numbers that have the fail - safe output state of low or the fail - safe output state of high. figure 17 . operational block diagram of a single channel with a low fail - safe output state figure 18 . operational block diagram of a single channel with a high fail - safe output state transmitter gnd 1 gnd 2 v in v out receiver regul a t or regul a t or 14 1 16-019 transmitter gnd 1 gnd 2 v in v out receiver regul a t or regul a t or 14 1 16-020
ADUM220N/adum221n/adum225n/adum226n data sheet rev. 0 | page 20 of 23 applications information pcb layout the ADUM220N / adum221n / adum225n / adum226n digital isolators require no external interface circuitry for the logic interfaces. power supply bypassing is strongly recom - mended at the input and output supply pins (see figure 19 and figure 20 ). for the adum225n / adum226n , b ypass capacitors are most conveniently connected between pin 1 and pin 4 for v dd1 and between pin 5 and pin 8 for v dd2 . for the ADUM220N / adum221n , b ypass capacitors are most conveniently con - nected between pin 1 and pin 3 for v dd1 and between pin 14 and pin 16 for v dd2 . the recommended bypass capacitor value is between 0.01 f and 0.1 f. the total lead length between both end s of the capacitor and the input power supply pin must not exceed 10 mm . for the ADUM220N / adum221n , bypassing between pin 3 and pin 7 and between pin 9 and pin 14 must also be considered, unless the ground pair on each package side are connected close to the package. figure 19 . recommended pcb layout for ADUM220N / adum221n figure 20 . recommended pcb layout for adum225n / adum226n in applications involving high common - mode transients, ensure that board coupling across the isolation barrier is minimized. furthermore, design the board layout such that any coupling that does occur equally affects all pins on a given component side. failure to ensure this can cause voltage differentials between pins exceeding the absolute maximum ratings of the device, thereby leading to latch - up or permanent damage. see the an - 1109 application note for board layout guidelines. propagation delay re lated 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 0 output may differ from the propagation delay to a logic 1 output. figure 21 . propagation delay parameters pulse width distortion is the maximum difference between these two propagation delay values and is an indication of how accurately the timing of the input signal is preserved. channel matching is the maximum amou nt the propagation delay differs between channels within a single ADUM220N / adum221n / adum225n / adum226n component. propagation delay skew is the maximum amount the propaga - tion delay differs betwee n multiple ADUM220N / adum221n / adum225n / adum226n components operating under the same conditions . jitter measurement figure 22 shows the eye diagram for the ADUM220N / adum221n / adum225n / adum226n . the measurement was taken using an agilent 81110a pulse pattern generator at 150 mbps with pseudorandom bit sequence s (prbs) 2(n ? 1), n = 14, for 5 v suppli es. jitter was measured with the tektronix model 5104b oscilloscope, 1 ghz, 10 g sps with the dpojet jitter and eye diagram analysis tools. the result shows a typical measurement on the ADUM220N / adum221n / adum225n / adum226n with 380 ps p - p jitter. figure 22 . ADUM220N / adum221n / adum225n / adum226n e ye diagram insulation lifetime all insulation structures eventually break down when subjected to voltage stress over a sufficiently long period. the rate of insula - tion degradation is dependent on the characteristics of the voltage waveform applied across the insulation as well as on the materials and material interfaces. the two types of insulation degradation of primary interest are breakdown along surfaces exposed to the air and insulation wear out. surface breakdown is the phenomenon of surface tracking , and the primary determinant of surface creepage requirements in system level standards. insulation wear out is the phenomenon where charge injection or displacement currents inside the insulation material cause long - term insulation degradation. gnd 1 nic v dd1 v ia , v oa gnd 2 nic v dd2 v oa , v ia v ib v ob nic nic gnd 1 nic nic gnd 2 14 1 16-017 v dd1 v ia , v oa v ib v dd2 v oa , v ia v ob gnd 1 gnd 2 14 1 16-018 input (v ix ) output (v ox ) t plh t phl 50% 50% 14 1 16-021 10 5 0 1 2 3 4 voltage (v) 5 0 time (ns) ?5 ?10 14 1 16-022
data sheet ADUM220N/adum221n/adum225n/adum226n rev. 0 | page 21 of 23 surface tracking surface tracking is addressed in electrical safety standards by setting a minimum surface creepage based on the working voltage, the environmental conditions, and the properties of the insulation material. safety agencies perform characterization testing on the surface insulation of components that allows the components to be categorized in different material groups. lower material group ratings are more resistant to surface tracking and, therefore, can provide adequate lifetime with smaller creep age. the minimum creepage for a given working voltage and material group is in each system level standard and is based on the total rms voltage across the isolation, pollution degree, and material group. the material group and creepage for the ADUM220N / adum221n / adum225n / adum226n isolators are presented in table 9 and table 10. insulation wear out the lifetime of ins ulation caused by wear out is determined by its thickness, material properties, and the voltage stress applied. it is important to verify that the product lifetime is adequate at the application working voltage. the working voltage supported by an isolator for wear out may not be the same as the working voltage supported for tracking. it is the working voltage applicable to tracking that is specified in most standards. testing and modeling show that the primary driver of long - term degradation is displacemen t current in the polyimide insulation causing incremental damage. the stress on the insulation can be broken down into broad categories, such as dc stress, which causes very little wear out because there is no displacement current, and an ac component time varying voltage stress, which causes wear out. the ratings in certification documents are usually based on 60 hz sinusoidal stress because this reflects isolation from line voltage. however, many practical applications have combinations of 60 hz ac and d c across the barrier as shown in equation 1. because only the ac portion of the stress causes wear out, the equation can be rearranged to solve for the ac rms voltage, as is shown in equation 2. for insulation wear out with the polyimide materials used in these products, the ac rms voltage determines the product lifetime. 2 2 dc rms ac rms v v v + = dc rms rms ac v v v ? = v rms is the total rms working voltage. v ac rms is the time varying portion of the working voltage. v dc is the d c offset of the working voltage. calculation and use of parameters example the following example frequently arises in power conversion applications. assume that the line voltage on one side of the isolation is 240 v ac rms and a 400 v dc bus voltage is present on the other side of the isolation barrier. the isolator material is polyimide. to establish the critical voltages in determining the creepage, clearance and lifetime of a device, see table 18 and table 19 and the following equations. figure 23 . critical voltage example the working voltage across the barrier from equation 1 is 2 2 dc rms ac rms v v v + = + = rms v v rms = 466 v this v rms value is the working voltage used together with the material group and pollution degree when looking up the creepage required by a system standard. to determine if the lifetime is adequate, obtain the time varying portion of the working voltage. to obtain the ac r ms voltage, use equation 2 . 2 2 dc rms rms ac v v v ? = ? = rms ac v v ac rms = 240 v rms in this case, the ac rms voltage is simply the line voltage of 240 v rms. this calculation is more relevant when the waveform is not sinusoidal. the value is com pared to the limits for the continuous working voltage in table 18 and table 19 for the expected lifetime, less than a 60 hz sin e wave, and it is well within the limit for a 50 - year service life. note that the dc working voltage limit s in table 18 and table 19 are set by the creepage of the package as specified in iec 60664 - 1. the s e value s c an differ for specific system level standards. isolation voltage time v ac rms v rms v dc v peak 14 1 16-023
ADUM220N/adum221n/adum225n/adum226n data sheet rev. 0 | page 22 of 23 outline dimensions figure 24 . 8 - lead standa rd small outline package , with increased creepage [soic_i c] wide body (r i- 8 - 1 ) dimensions shown in millimeters figure 25 . 16 - lead standard small outline package [soic_w] wide body (rw - 16) dimensions shown in millimeters and (inches) 09-17-2014-b 8 5 4 1 se a ting plane coplanarit y 0.10 1.27 bsc 1.04 bsc 6.05 5.85 5.65 7.60 7.50 7.40 2.65 2.50 2.35 0.75 0.58 0.40 0.30 0.20 0.10 2.45 2.35 2.25 10.51 10.31 10. 1 1 0.51 0.41 0.31 pin 1 mark 8 0 0.33 0.27 0.20 0.75 0.50 0.25 45 controlling dimensions are in millimeters; inch dimensions (in p arentheses) are rounded-off millimeter equiv alents for reference onl y and are not appropria te for use in design. compliant t o jedec st andards ms-013-aa 10.50 (0.4134) 10.10 (0.3976) 0.30 (0.01 18) 0.10 (0.0039) 2.65 (0.1043) 2.35 (0.0925) 10.65 (0.4193) 10.00 (0.3937) 7.60 (0.2992) 7.40 (0.2913) 0.75 (0.0295) 0.25 (0.0098) 45 1.27 (0.0500) 0.40 (0.0157) coplanarity 0.10 0.33 (0.0130) 0.20 (0.0079) 0.51 (0.0201) 0.31 (0.0122) sea ting plane 8 0 1 6 9 8 1 1.27 (0.0500) bsc 03-27- 2007-b
data sheet ADUM220N/adum221n/adum225n/adum226n rev. 0 | page 23 of 23 ordering guide model 1 temperature range no. of inputs, v dd1 side no. of inputs, v dd2 side withstand voltage rating (kv rms) fail - safe output state package description package option adum 220 n 1 brwz ? 40 c to + 125 c 2 0 5.0 high 16- lead soic_w rw -16 adum 220 n 1 brwz - rl ? 40 c to + 125 c 2 0 5.0 high 16 - lead soic_w rw - 16 adum 220 n 0 brwz ? 40 c to + 125 c 2 0 5.0 low 16- lead soic_w rw -16 adum 220 n 0 brwz - rl ? 40 c to + 125 c 2 0 5.0 low 16- lead soic_w rw -16 adum22 1 n 1 brwz ? 40 c to + 125 c 1 1 5.0 high 16 - lead soic_w rw - 16 adum 221 n 1 brwz - rl ? 40 c to + 125 c 1 1 5.0 high 16- lead soic_w rw -16 adum 221 n 0 brwz ? 40 c to + 125 c 1 1 5.0 low 16- lead soic_w rw -16 adum 221 n 0 brwz - rl ? 40 c to + 125 c 1 1 5.0 low 16- lead soic_w rw -16 adum 225 n 1 briz ? 40 c to + 125 c 2 0 5.0 high 8- lead soic_ic ri -8-1 adum 225 n 1 briz - rl ? 40 c to + 125 c 2 0 5.0 high 8- lead soic_ic ri -8-1 adum 225 n 0 briz ? 40 c to + 125 c 2 0 5.0 low 8- lead soic_ic ri -8-1 adum 225 n 0 briz - rl ? 40 c to + 125 c 2 0 5.0 low 8- lead so ic_ic ri -8-1 adum 226 n 1 briz ? 40 c to + 125 c 1 1 5.0 high 8- lead soic_ic ri -8-1 adum 226 n 1 briz - rl ? 40 c to + 125 c 1 1 5.0 high 8- lead soic_ic ri -8-1 adum 226 n 0 briz ? 40 c to + 125 c 1 1 5.0 low 8- lead soic_ic ri -8-1 adum 226 n 0 briz - rl ? 40 c to + 125 c 1 1 5.0 l ow 8 - lead soic_ic ri - 8 - 1 1 z = rohs compliant part. ? 2016 analog devices, inc. all rights reserved. trademarks and registered trademarks are the property of their respective owners. d14116 - 0 - 4/16(0)

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