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19-1982; Rev 0; 4/01
0.8, Low-Voltage, Single-Supply SPDT Analog Switch in SC70
General Description
The MAX4714 is a low on-resistance, low-voltage single-pole/double-throw (SPDT) analog switch that operates from a single +1.6V to +3.6V supply. The MAX4714 has break-before-make switching. This device also has fast switching speeds (t ON = 18ns max, tOFF = 12ns max). When powered from a +3V supply, the MAX4714 features 0.8 max on-resistance (RON), with 0.18 max RON matching and flatness. The digital logic input is 1.8V CMOS compatible when using a single +3V supply. The MAX4714 is pin compatible with the MAX4599 and is available in a 6-pin SC70 package. o Low RON 0.8 max (+3V Supply) 2.5 max (+1.8V Supply) o 0.18 max RON Flatness (+3V Supply) o +1.6V to +3.6V Single-Supply Operation o Available in 6-Pin SC70 Package o Fast Switching: tON = 18ns max, tOFF = 12ns max o 1.8V CMOS Logic Compatible (+3V Supply) o Pin Compatible with MAX4599 o Guaranteed Break-Before-Make
Features
MAX4714
Applications
Power Routing Battery-Operated Equipment Audio and Video Signal Routing Low-Voltage Data-Acquisition Systems Communications Circuits PCMCIA Cards Cellular Phones Modems Hard Drives
PART MAX4714EXT-T
Ordering Information
TEMP. RANGE -40C to +85C PINPACKAGE 6 SC70-6 TOP MARK AAY
Pin Configuration/ Functional Diagram/Truth Table
TOP VIEW
MAX4714
IN 1 V+ 2 GND 3 6 5 4 NO COM NC LOGIC 0 1 NC ON OFF NO OFF ON
SC70-6
SWITCHES SHOWN FOR LOGIC "0" INPUT
________________________________________________________________ Maxim Integrated Products
1
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0.8, Low-Voltage, Single-Supply SPDT Analog Switch in SC70 MAX4714
ABSOLUTE MAXIMUM RATINGS
Voltages Referenced to GND V+, IN ....................................................................-0.3V to +4V COM, NC, NO (Note 1)..............................-0.3V to (V+ + 0.3V) Continuous Current NO, NC to COM..............................150mA Peak Current NO, NC to COM (pulsed at 1ms, 10% duty cycle max) ........................ 300mA Continuous Power Dissipation 6-Pin SC70 (derate 3.1mW/C above +70C) ...............247mW Operating Temperature Range MAX4714EXT ....................................................-40C to +85C Junction Temperature ......................................................+150C Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10s) ................................ +300C
Note 1: Signals on NC, NO, and COM exceeding V+ or GND are clamped by internal diodes.
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS--Single +3V Supply
(V+ = +2.7V to +3.6V, VIH = +1.4V, VIL = +0.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at V+ = +3.0V and TA = +25C.) (Notes 2, 3)
PARAMETER ANALOG SWITCH Analog Signal Range On-Resistance On-Resistance Match Between Channels (Note 4) On-Resistance Flatness (Note 5) NO or NC Off-Leakage Current COM On-Leakage Current DYNAMIC Turn-On Time Turn-Off Time Break-Before-Make Delay (Note 6) Charge Injection Off-Isolation (Note 7) Crosstalk (Note 8) Total Harmonic Distortion THD tON tOFF tBBM Q VISO VNO or VNC = 1.5V, RL = 50, CL = 35pF, Figure 1 VNO or VNC = 1.5V, RL = 50, CL = 35pF, Figure 1 VNO or VNC = 1.5V, RL = 50, CL = 35pF, Figure 2 VGEN, RGEN, CL = 1.0nF, Figure 3 f = 1MHz, VCOM = 1VRMS, RL = 50, CL = 5pF, Figure 4 f = 1MHz, VCOM = 1VRMS, RL = 50, CL = 5pF, Figure 4 f = 20Hz to 20kHz, VCOM = 2VP-P, RL = 32 +25C TMIN to TMAX +25C TMIN to TMAX +25C TMIN to TMAX +25C +25C +25C +25C 1 1 22 -54 -54 0.01 9 6 13 18 20 12 15 ns ns ns pC dB dB % VCOM, VNO, VNC RON RON RFLAT(ON) INO(OFF), INC(OFF) ICOM(ON) V+ = 2.7V, ICOM = 100mA, VNO or VNC = 1.5V V+ = 2.7V, ICOM = 100mA, VNO or VNC = 1.5V V+ = 2.7V, ICOM = 100mA, VNO or VNC = 0.6V, 1.5V, 2.1V V+ = 3.3V, VCOM = 0.3V, 3V, VNO or VNC = 3V, 0.3V V+ = 3.3V, VCOM = 0.3V, 3V, VNO or VNC = 0.3V, 3V or floating +25C TMIN to TMAX +25C TMIN to TMAX +25C TMIN to TMAX +25C TMIN to TMAX +25C TMIN to TMAX -1 -5 -2 -10 0.1 0.03 0 0.6 V+ 0.8 0.9 0.06 0.08 0.18 0.2 1 5 2 10 V nA nA SYMBOL CONDITIONS TA MIN TYP MAX UNITS
2
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0.8, Low-Voltage, Single-Supply SPDT Analog Switch in SC70
ELECTRICAL CHARACTERISTICS--Single +3V Supply (continued)
(V+ = +2.7V to +3.6V, VIH = +1.4V, VIL = +0.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at V+ = +3.0V and TA = +25C.) (Notes 2, 3)
PARAMETER NC or NO Off-Capacitance COM On-Capacitance LOGIC INPUT Input Voltage Low Input Voltage High Input Leakage Current SUPPLY Power-Supply Range Positive Supply Current V+ I+ V+ = +3.6V, VIN = 0 or V+ +25C TMIN to TMAX 1.6 0.04 3.6 0.2 2 V A VIL VIH IIN VIN = 0 or V+ 1.4 -1 1 0.5 V V A SYMBOL CNO(OFF), CNC(OFF) CCOM(ON) CONDITIONS f = 1MHz, Figure 5 f = 1MHz, Figure 5 TA +25C +25C MIN TYP 30 65 MAX UNITS pF pF
MAX4714
ELECTRICAL CHARACTERISTICS--Single +1.8V Supply
(V+ = +1.8V, VIH = +1V, VIL = +0.4V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Notes 2, 3)
PARAMETER ANALOG SWITCH Analog Signal Range On-Resistance NO or NC Off-Leakage Current COM On-Leakage Current DYNAMIC Turn-On Time Turn-Off Time Break-Before-Make Delay (Note 6) Charge Injection tON tOFF tBBM Q VNO or VNC = 1.5V, RL = 50, CL = 35pF, Figure 1 VNO or VNC = 1.5V, RL = 50, CL = 35pF, Figure 1 VNO or VNC = 1.5V, RL = 50, CL = 35pF, Figure 2 VGEN = 0, RGEN = 0, CL = 1nF, Figure 3 +25C TMIN to TMAX +25C TMIN to TMAX +25C TMIN to TMAX +25C 2 2 12 9 18 25 30 15 18 ns ns ns pC VCOM, VNO, VNC RON INO(OFF), INC(OFF) ICOM(ON) ICOM = 10mA, VNO or VNC = +0.9V VCOM = 0.3V, 1.5V, VNO or VNC = 1.5V, 0.3V VCOM = 0.3V, 1.5V, VNO or VNC = 0.3V, 1.5V or floating +25C TMIN to TMAX +25C TMIN to TMAX +25C TMIN to TMAX -1 -5 -2 -10 0.01 0 1.2 V+ 2.5 5 1 5 2 10 V nA nA SYMBOL CONDITIONS TA MIN TYP MAX UNITS
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0.8, Low-Voltage, Single-Supply SPDT Analog Switch in SC70 MAX4714
ELECTRICAL CHARACTERISTICS--Single +1.8V Supply (continued)
(V+ = +1.8V, VIH = +1V, VIL = +0.4V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Notes 2, 3) PARAMETER SYMBOL CONDITIONS TA MIN TYP MAX UNITS
LOGIC INPUT Input Voltage Low Input Voltage High Input Leakage Current SUPPLY Positive Supply Current I+ VIN = 0 or V+ +25C TMIN to TMAX 0.04 0.2 2 A VIL VIH IIN VIN = 0 or V+ 1 1 0.4 V V A
Note 2: The algebraic convention, where the most negative value is a minimum and the most positive value is a maximum, is used in this data sheet. Note 3: SC70-packaged parts are 100% tested at +25C. Limits across the full temperature range are guaranteed by design and correlation. Note 4: RON = RON(MAX) - RON(MIN). Note 5: Flatness is defined as the difference between the maximum and minimum values of on-resistance as measured over the specified analog signal range. Note 6: Guaranteed by design. Note 7: Off-Isolation = 20log10 [VCOM / (VNC or VNO)], VCOM = output, VNC or VNO = input to off switch. Note 8: Between the two switches.
Typical Operating Characteristics
(TA = +25C, unless otherwise noted.)
ON-RESISTANCE vs. COM VOLTAGE OVER SUPPLY VOLTAGE
MAX4714 toc01
ON-RESISTANCE vs. COM VOLTAGE OVER TEMPERATURE
MAX4714 toc02
TURN-ON/OFF TIMES vs. SUPPLY VOLTAGE
18 16 14 tON/tOFF (ns) 12 10 8 6 4 tOFF tON
MAX4714 toc03
1.2 1.1 1.0 0.9 RON () 0.8 0.7 0.6 0.5 V+ = +3.6V 0.4 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 VCOM (V) V+ = +2.5V V+ = +2.7V V+ = +3.0V V+ = +3.3V V+ = +2.0V V+ = +1.8V ICOM = 100mA
0.75 0.70 0.65 0.60 RON () 0.55 0.50 0.45 0.40 0.35 0.30 0 0.5 1.0 TA = 0C V+ = +2.7V ICOM = 100mA
20
TA = +85C TA = +65C TA = +25C
TA = -20C TA = -40C 1.5 VCOM (V) 2.0 2.5
2 0 1.0 1.5 2.0 2.5
RL = 50 3.0 3.5
SUPPLY VOLTAGE (V)
4
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0.8, Low-Voltage, Single-Supply SPDT Analog Switch in SC70
Typical Operating Characteristics (continued)
(TA = +25C, unless otherwise noted.)
MAX4714
TURN-ON/OFF TIMES vs. TEMPERATURE
MAX4714 toc04
ON/OFF-LEAKAGE CURRENT vs. TEMPERATURE
3.5 ON/OFF-LEAKAGE CURRENT (nA) 3.0 ICOM(ON) 2.5 V+ = 3.3V
MAX4714 toc05
CHARGE INJECTION vs. COM VOLTAGE
45 40 35 Q (pC) 30 25 20 V+ = 3V CL = 1nF
MAX4714 toc06
16 14 12 tON/tOFF (ns) 10 8 6 4 2 0 -40 -20 0 20 V+ = +2.7V RL = 50 CL = 35pF 40 TEMPERATURE (C) 60 80 tOFF tON
4.0
50
2.0 1.5 1.0 0.5 0 -40 -20 40 TEMPERATURE (C) 0 20 60 80 ICOM(OFF)
15 10 5 0 0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 VCOM (V) V+ = 1.8V CL = 1nF
FREQUENCY RESPONSE
MAX4714 toc07
LOGIC THRESHOLD VOLTAGE vs. SUPPLY VOLTAGE
MAX4714 toc08
TOTAL HARMONIC DISTORTION vs. FREQUENCY
1
MAX4714 toc09
20 ON-LOSS 0 -20 LOSS (dB) -40 -60 -80 -100 -120 10k 100k 1M 10M 100M ON-PHASE OFF-ISOLATION/CROSSTALK
1.1 LOGIG THRESHOLD VOLTAGE (V) 1.0 0.9 VIN RISING 0.8 0.7 VIN FALLING 0.6 0.5 0.4
RL = 32 V+ = 3V
0.1 THD (%) 0.01 0.001 10
1G
1.0
1.5
2.0
2.5
3.0
3.5
100
1k FREQUENCY (Hz)
10k
100k
FREQUENCY (Hz)
SUPPLY VOLTAGE (V)
Pin Description
PIN NAME IN V+ GND NC COM NO Digital Control Input Positive Supply Voltage Input Ground Analog Switch--Normally Closed Analog Switch--Common Analog Switch--Normally Open 5 FUNCTION
1
2 3 4 5 6
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0.8, Low-Voltage, Single-Supply SPDT Analog Switch in SC70 MAX4714
Detailed Description
The MAX4714 is a low-on-resistance (RON), low-voltage, single-pole/double-throw (SPDT) analog switch that operates from a +1.6V to +3.6V supply. The MAX4714 has break-before-make switching. This device also has fast switching speeds (t ON = 18ns max, tOFF = 12ns max). When powered from a +3V supply, the 0.8 max RON allows high continuous currents to be switched in a variety of applications. +3.3V supply, IN may be driven low to GND and high to +3.6V. Driving IN Rail-to-Rail(R) minimizes power consumption.
Analog Signal Levels
Analog signals that range over the entire supply voltage (V+ to GND) can be passed with very little change in on-resistance (see Typical Operating Characteristics). The switches are bidirectional, so the NO, NC, and COM pins can be used as either inputs or outputs.
Applications Information
Logic Inputs
The MAX4714 logic input can be driven up to +3.6V regardless of the supply voltage. For example, with a
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
Chip Information
TRANSISTOR COUNT: 135 PROCESS: CMOS
Test Circuits/Timing Diagrams
MAX4714
V+ V+ COM RL 50 IN LOGIC INPUT VOUT CL 35pF VOUT GND SWITCH OUTPUT 0 t ON 0.9 x V0UT t OFF VINH 50% VINL
t r < 5ns t f < 5ns
NO OR NC
0.9 x VOUT
LOGIC INPUT
CL INCLUDES FIXTURE AND STRAY CAPACITANCE. RL VOUT = VN_ RL + RON
(
)
LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES THAT HAVE THE OPPOSITE LOGIC SENSE.
Figure 1. Switching Time
MAX4714
V+ V+ LOGIC INPUT COM NO IN RL 50 GND VOUT CL 35pF VOUT
VINH 50% VINL
VN_
NC
LOGIC INPUT
0.9 x VOUT tD
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
Figure 2. Break-Before-Make Interval 6 _______________________________________________________________________________________
0.8, Low-Voltage, Single-Supply SPDT Analog Switch in SC70 MAX4714
Test Circuits/Timing Diagrams (continued)
V+
MAX4714
V+ RGEN NC OR NO GND IN OFF ON Q = (V OUT )(C L ) COM CL VOUT VOUT IN OFF ON
VOUT
OFF
V GEN
VINL TO VINH
IN
OFF
IN DEPENDS ON SWITCH CONFIGURATION; INPUT POLARITY DETERMINED BY SENSE OF SWITCH.
Figure 3. Charge Injection
+3V 10nF NETWORK ANALYZER 0 OR V+ IN V+ COM VIN 50 50
V OFF-ISOLATION = 20log OUT VIN ON-LOSS = 20log VOUT VIN
NC 50
MAX4714
NO GND VOUT
MEAS
REF
V CROSSTALK = 20log OUT VIN
50
50
MEASUREMENTS ARE STANDARDIZED AGAINST SHORTS AT IC TERMINALS. OFF-ISOLATION IS MEASURED BETWEEN COM_ AND "OFF" NO_ OR NC_ TERMINAL ON EACH SWITCH. ON-LOSS IS MEASURED BETWEEN COM_ AND "ON" NO_ OR NC_TERMINAL ON EACH SWITCH. CROSSTALK IS MEASURED FROM ONE CHANNEL TO ALL OTHER CHANNELS. SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED.
Figure 4. On-Loss, Off-Isolation, and Crosstalk
10nF V+
V+ COM
MAX4714
IN VINL OR VINH
CAPACITANCE METER f = 1MHz
NC or NO GND
Figure 5. Channel Off/On-Capacitance
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0.8, Low-Voltage, Single-Supply SPDT Analog Switch in SC70 MAX4714
Package Information
SC70, 6L.EPS
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
8 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 (c) 2001 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

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