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19-1907; Rev 1; 11/03
Fault-Protected, Low-Voltage, Quad SPST Analog Switches
General Description
The MAX4711/MAX4712/MAX4713 are fault-protected, Rail-to-Rail(R), low-voltage analog switches featuring low on-resistance and guaranteed on-resistance flatness over the specified signal range. Due to the fault protection feature the analog switch input (NO_ or NC_) and output (COM_) pins are not symmetrical. The fault protection feature allows for the analog input to go beyond the plus or minus supplies without the device drawing excessive amounts of current from the analog inputs. When the analog inputs are driven beyond the supply rails when the switch is on, it will sense a fault and turn itself off and the analog switch output will be clamped to the same polarity supply as the input signal and will not go beyond the supply rails. This feature protects any electronic circuitry connected to the output from excessive voltages present on the analog inputs. The MAX4711/MAX4712/MAX4713 are quad, singlepole/single-throw (SPST) analog switches. The MAX4711 has four normally closed switches (NC), the MAX4712 has four normally open switches (NO), and the MAX4713 has two NO and two NC switches. Switching times are less than 125ns for tON, and less than 80ns for tOFF. These switches operate from a single +2.7V to +11V supply or from dual 2.7V to 5.5V supplies. All digital inputs have +0.8V to +2.4V logic thresholds, ensuring both TTL and CMOS logic compatibility when using 4.5V to 5.5V or single +4.5V to +11V supplies. Fault-Protected Analog Inputs 12V Fault Protection with Power Off 7V Fault Protection with 5V Supplies +12V and -7V Fault Protection with +5V Supply +12V and -9V Fault Protection with +3V Supply Fault-Protected Digital Inputs May Exceed V+ Supply Rail All Switches Off with Power Off Rail-to-Rail Signal Handling Output Clamped to Appropriate Supply Voltages During Fault Condition 25 (max) RON at +25C 1 (max) On-Resistance Match Between Channels Single- and Dual-Supply Operation Pin-Compatible with Industry-Standard MAX391/MAX392/MAX393 TTL- and CMOS-Compatible Logic Inputs
Features
MAX4711/MAX4712/MAX4713
Ordering Information
PART MAX4711CUE MAX4711CSE MAX4711CPE MAX4711EUE MAX4711ESE MAX4711EPE TEMP RANGE 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C -40C to +85C PIN-PACKAGE 16 TSSOP 16 Narrow SO 16 Plastic Dip 16 TSSOP 16 Narrow SO 16 Plastic Dip
________________________Applications
Communication Systems Battery-Operated Systems Signal Routing Test Equipment Data-Acquisition Industrial and Process Control Systems Avionics Redundant/Backup Systems
Ordering Information continued at end of data sheet.
Pin Configurations/Functional Diagrams/Truth Tables
TOP VIEW IN1 1 COM1 2 NC1 3 V- 4 GND 5 NC4 6 COM4 7 IN4 8 DIP/SO/TSSOP MAX4711
16 IN2 15 COM2 14 NC2 13 V+ 12 N.C. 11 NC3 10 COM3 9
IN3
Pin Configurations/Functional Diagrams/Truth Tables continued at end of data sheet. Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
MAX4711 LOGIC SWITCH 0 1 ON OFF
N.C. = NOT CONNECTED
________________________________________________________________ Maxim Integrated Products
1
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Fault-Protected, Low-Voltage, Quad SPST Analog Switches MAX4711/MAX4712/MAX4713
ABSOLUTE MAXIMUM RATINGS
V+ ...........................................................................-0.3V to +13V V- ............................................................................-13V to +0.3V V+ to V-...................................................................-0.3V to +13V IN_...........................................................(V- + 12V) to (V- - 0.3V) COM_ (Note 1)......................................(V- - 0.3V) to (V+ + 0.3V) NO_, NC_ (Note 2)..................................(V+ - 12V) to (V- + 12V) Continuous Current into Any Terminal..............................40mA Peak Current, into Any Terminal (pulsed at 1ms,10% duty cycle).................................70mA Continuous Power Dissipation (TA = +70C) 16-Pin TSSOP (derate 5.70mW/C above +70C) ...........457mW 16-Pin Narrow SO (derate 8.70mW/C above +70C).....696mW 16-Pin Plastic Dip (derate 10.53mW/C above +70C) ...842mW Operating Temperature Ranges MAX471_C_ E .....................................................0C to +70C MAX471_E_ E ..................................................-40C to +85C Junction Temperature ......................................................+150C Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10s) .................................+300C
Note 1: COM_ pin is not fault-protected. Signals on COM_ exceeding V+ or V- are clamped by internal diodes. Limit forward diode current to maximum current rating. Note 2: NO_ and NC_ pins are fault-protected. Signals on NO_ or NC_ exceeding -12V to +12V may damage device. These limits apply with V+ = V- = 0.
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--Dual Supplies
(V+ = +4.5V to +5.5V, V- = -4.5V to -5.5V, VIH = +2.4V, VIL = +0.8V, GND = 0, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 3)
PARAMETER ANALOG SWITCH Fault-Free Analog Signal Range On-Resistance On-Resistance Match Between Channels (Note 4) On-Resistance Flatness NO_, NC_ Off-Leakage Current (Note 5) COM_ Off-Leakage Current (Note 5) COM_ On-Leakage Current (Note 5) FAULT Fault-Protected Analog Signal Range Fault-Protected Analog Signal Range COM_ Output-Leakage Current, Supplies ON (Note 5) VNO_, VNC_ VNO_, VNC_ ICOM Applies with power on Applies with power off All channels off, V+ = +5V, V- = -5V, VNO_, VNC_ = 7V C, E C, E +25C C, E -12 + V+ -12 -50 -500 +12 + V+12 +50 nA +500 V V VCOM_, VNO_,VNO_ RON RON RFLAT INO_(OFF), INC_(OFF) Applies with power on V+ = +4.5V, V- = -4.5V, VNO_, VNC_ = 3.5V, IOUT = 10mA V+ = +4.5V, V- = -4.5V, VNO_, VNC_ = 3.5V, IOUT = 10mA V+ = +4.5V, V- = -4.5V, VNO_, VNC_ = 3.5V, IOUT = 10mA V+ = +5.5V, V- = -5.5V, VCOM_ = 4.5V, VNO_, VNC_ = 4.5V V+ = +5.5V, V- = -5.5V, VCOM_ = 4.5V, VNO_, VNC_ = 4.5V V+ = +5.5V, V- = -5.5V, VCOM_ = 4.5V, VNO_, VNC_ = 4.5V or floating C, E +25C C, E +25C C, E +25C C, E +25C C, E +25C C, E +25C C, E -0.5 -10 -0.5 -10 -0.5 -20 1.3 0.2 V16 V+ 25 30 1 2 4 5 +0.5 nA +10 +0.5 nA +10 +0.5 nA +20 V SYMBOL CONDITIONS TA MIN TYP MAX UNITS
ICOM_(OFF)
ICOM_(ON)
2
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Fault-Protected, Low-Voltage, Quad SPST Analog Switches
ELECTRICAL CHARACTERISTICS--Dual Supplies (continued)
(V+ = +4.5V to +5.5V, V- = -4.5V to -5.5V, VIH = +2.4V, VIL = +0.8V, GND = 0, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 3)
PARAMETER NO_ or NC_ Off-Leakage Current, Supplies ON (Note 5) NO_ or NC_ Input-Leakage Current, Supplies OFF (Note 5) SYMBOL INO_, INC_ INO_, INC_ CONDITIONS V+ = +5V, V- = -5V, VNO_, VNC_ = 7V VNO_, VNC_ = 12V, V = 0 VNO_, VNC_ = +7V, V+ = +5V, V- = -5V VNO_, VNC_ = -7V V+ = +5V, V- = -5V VNO_, VNC_ = 7V +25C +25C VNO_, VNC_ = 7V, RCOM = 1k VNO_, VNC_ = 7V, RCOM = 1k VIH VIL IIN VIN_ = 0 or V+ +25C +25C C, E C, E +25C C, E +25C C, E +25C C, E +25C C, E +25C +25C +25C +25C +25C 15 5 25 8 8 30 -59 30 50 -1 -5 80 2.4 0.8 +1 +5 125 150 80 100 V- 0.4V 200 700 TA +25C C, E +25C C, E MIN -50 -500 -0.5 -5 9 C, E -33 -16 200 V+ + 0.4V -9 V ns ns V V A 20 TYP MAX +50 +500 +0.5 +5 33 mA UNITS nA A
MAX4711/MAX4712/MAX4713
Output Clamp Current
ICOM_
Output Clamp Resistance Fault Trip Threshold Fault Output Turn-On Delay Time Fault Recovery Time LOGIC INPUT Input Logic High Input Logic Low Input-Leakage Current (Note 5) SWITCH DYNAMICS Turn-On Time Turn-Off Time Break-Before-Make Time Delay (MAX4713 only) Charge Injection NO_ or NC_ Off-Capacitance COM_ Off-Capacitance COM_ On-Capacitance Off-Isolation (Note 6) Channel-to-Channel Crosstalk (Note 7)
RCLAMP_
tON tOFF tBBM Q CN_(OFF) CCOM_(OFF) CCOM_(ON) VISO
VNO_ or VNC_ = 3V, RL = 300, CL = 35pF, Figure 2 VNO_ or VNC_ = 3V, RL = 300, CL = 35pF, Figure 2 VNO_ or VNC_ = 3V, RL = 300, CL = 35pF, Figure 2 VGEN = 0, RGEN = 0, CL = 1nF, Figure 4 f = 1MHz, Figure 5 f = 1MHz, Figure 5 f = 1MHz, Figure 5 RL = 50, CL = 15pF, PIN = 0, f = 1MHz, Figure 6 RL = 50, CL = 15pF, PIN = 0, f = 1MHz, Figure 6
ns ns ns pC pF pF pF dB
VCT
+25C
-87
dB
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Fault-Protected, Low-Voltage, Quad SPST Analog Switches MAX4711/MAX4712/MAX4713
ELECTRICAL CHARACTERISTICS--Dual Supplies (continued)
(V+ = +4.5V to +5.5V, V- = -4.5V to -5.5V, VIH = +2.4V, VIL = +0.8V, GND = 0, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 3)
PARAMETER POWER SUPPLY Power-Supply Range V+ Supply Current V- Supply Current GND Supply Current V+, VI+ IIGND All VIN_ = 0 or V+ All VIN_ = 0 or V+ All VIN_ = 0 or V+ C, E +25C C, E +25C C, E +25C C, E 0 38 2.7 38 5.5 75 100 75 100 1 10 V A A A SYMBOL CONDITIONS TA MIN TYP MAX UNITS
ELECTRICAL CHARACTERISTICS--+5V Single Supply
(V+ = +4.5V to +5.5V, V- = 0, VIH = +2.4V, VIL = +0.8V, GND = 0, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 3)
PARAMETER ANALOG SWITCH Fault-Free Analog Signal Range On-Resistance On-Resistance Match Between Channels (Note 4) On-Resistance Flatness VCOM_, VNO_,VNC_ RON RON Power on V+ = +4.5V, VNO_, VNC_ = +3.5V, IOUT = 10mA V+ = +4.5V, VNO_, VNC_ = +3.5V, IOUT = 10mA V+ = +4.5V, VNO_, VNC_ = +1.5V, +2.25V, +3.5V, IOUT = 10mA V+ = +5.5V, VCOM_ = +1V, +4.5V; VNO_, VNC_ = +4.5V, +1V V+ = +5.5V, VCOM_ = +1V, +4.5V; VNO_, VNC_ = +4.5V, +1V V+ = +5.5V, VCOM_ = +1V, +4.5V; VNO_, VNC_ = +1V, +4.5V, or floating C, E +25C C, E +25C C, E +25C C, E +25C C, E +25C C, E +25C C, E -0.5 -10 -0.5 -10 -0.5 -20 2 0.3 V30 V+ 40 50 2 3 5 6 +0.5 nA +10 +0.5 nA +10 +0.5 nA +20 V SYMBOL CONDITIONS TA MIN TYP MAX UNITS
RFLAT
NO_, NC_ Off-Leakage Current (Note 5)
INO_(OFF), INC_(OFF)
COM_ Off-Leakage Current (Note 5)
ICOM_(OFF)
COM_ On-Leakage Current (Note 5)
ICOM_(ON)
FAULT Fault-Protected Analog Signal Range VNO_, VNC_ Power on C, E -12 + V+ +12 V
4
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Fault-Protected, Low-Voltage, Quad SPST Analog Switches
ELECTRICAL CHARACTERISTICS--+5V Single Supply (continued)
(V+ = +4.5V to +5.5V, V- = 0, VIH = +2.4V, VIL = +0.8V, GND = 0, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 3)
PARAMETER Fault-Protected Analog Signal Range COM_ Output-Leakage Current, Supplies ON (Note 5) NO_ or NC_ Off-Leakage Current, Supplies ON (Note 5) NO_ or NC_ Input-Leakage Current, Supplies OFF (Note 5) Output Clamp Current Output Clamp Resistance +Fault Output Turn-On Delay Time +Fault Recovery Time LOGIC INPUT Input Logic High Input Logic Low Input-Leakage Current (Note 5) SWITCH DYNAMICS Turn-On Time Turn-Off Time Break-Before-Make Time Delay (MAX4713 only) Charge Injection POWER SUPPLY Power-Supply Range V+ Supply Current V+ I+ All VIN_ = 0 or V+ C, E +25C C, E 2.7 34 11 65 75 V A tON tOFF tBBM Q VNO_ or VNC_ = +3V, RL = 300, CL = 35pF, Figure 2 VNO_ or VNC_ = +3V, RL = 300, CL = 35pF, Figure 2 VNO_ or VNC_ = +3V, RL = 300, CL = 35pF, Figure 2 VGEN= 0, RGEN = 0, CL = 1nF, Figure 4 +25C C, E +25C C, E +25C C, E +25C 30 20 -1 115 55 170 230 275 100 125 ns ns ns pC VIH VIL IIN VIN_ = 0 or V+ C, E C, E C, E -1 2.4 0.8 +1 V V A SYMBOL VNO_, VNC_ ICOM_ INO_, INC_ INO_, INC_ ICOM_ RCLAMP_ CONDITIONS Power off All channels off; VNO_, VNC_ = +12V or -7V, V+ = +5V VNO_, VNC_ = +12V or -7V, V+ = +5V VNO_, VNC_ = 12V, V = 0 VNO_, VNC_ = +12V, V+ = 5V Clamp on VNO_, VNC_ = +12V, RL = 300, V+ = +5V VNO_, VNC_ = +12V, RL = 300, V+ = +5V TA C, E +25C C, E +25C C, E +25C C, E C, E +25C +25C +25C MIN -12 -50 -500 -50 -500 -0.5 -5 2 6 500 200 500 TYP MAX +12 +50 +500 +50 +500 +0.5 +5 11 UNITS V nA nA A mA ns s
MAX4711/MAX4712/MAX4713
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Fault-Protected, Low-Voltage, Quad SPST Analog Switches MAX4711/MAX4712/MAX4713
ELECTRICAL CHARACTERISTICS--+3V Single Supply
(V+ = +2.7V to +3.6V, V- = 0, VIH = +2.0V, VIL = +0.6V, GND = 0, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 3)
PARAMETER ANALOG SWITCH Fault-Free Analog Signal Range On-Resistance On-Resistance Match Between Channels (Note 4) NO_, NC_ Off-Leakage Current (Note 5) COM_ Off-Leakage Current (Note 5) VCOM_, Power-on VNO_, VNC_ RON RON INO_(OFF), INC_(OFF) V+ = +2.7V, VNO_, VNC_ = +1V, IOUT = 1mA V+ = +2.7V, VNO_, VNC_ = +1V, IOUT = 1mA V+ = +3.6V, VCOM_ = +0.7V, +3V; VNO_, VNC_ = +3V, +0.7V V+ = +3.6V, VCOM_ = +0.7V, +3V; VNO_, VNC_ = +3V, +0.7V V+ = +3.6V, VCOM_ = +0.7, +3V; VNO_, VNC_ = +0.7V,+3V, or floating C, E +25C C, E +25C C, E +25C C, E +25C C, E +25C C, E -0.5 -10 -0.5 -10 -0.5 -20 1 V54 V+ 75 100 7 9 +0.5 nA +10 +0.5 nA +10 +0.5 nA +20 V SYMBOL CONDITIONS TA MIN TYP MAX UNITS
ICOM_(OFF)
COM_ On-Leakage Current (Note 5) FAULT Fault-Protected Analog Signal Range Fault-Protected Analog Signal Range COM_ Output-Leakage Current, Supplies ON (Note 5) NO_ or NC_ Off-Leakage Current, Supplies ON (Note 5) NO_ or NC_ Input-Leakage Current, Supplies OFF (Note 5) Output Clamp Current Output Clamp Resistance +Fault Output Turn-On Delay Time +Fault Recovery Time
ICOM_(ON)
VNO_, VNC_ VNO_, VNC_ ICOM INO_, INC_ INO_, INC_ ICOM_ RCLAMP_
Power-on Power-off All channels off; VNO_, VNC_ = +12V or -9V, V+ = +3V VNO_, VNC_ = +12V or -9V, V+ = +3V VNO_, VNC_ = 12V, V = 0 VNO_, VNC_ = +12V, V+ = +3V V+ = +3V, VNO_, VNC_ = +12V; clamp on VNO_, VNC_ = +12V, RL = 300, V+ = +3V VNO_, VNC_ = +12V, RL = 300, V+ = +3V
C, E C, E +25C C, E +25C C, E +25C C, E C, E +25C +25C +25C
-12 + V+ -12 -50 -500 -50 -500 -0.5 -5 0.5 600 200 2.2
+12 +12 +50
V V
nA +500 +50 +500 +0.5 +5 3.0 nA A mA k ns s
6
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Fault-Protected, Low-Voltage, Quad SPST Analog Switches
ELECTRICAL CHARACTERISTICS--+3V Single Supply (continued)
(V+ = +2.7V to +3.6V, V- = 0, VIH = +2.0V, VIL = +0.6V, GND = 0, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 3)
PARAMETER LOGIC INPUT Input Logic High Input Logic Low Input-Leakage Current (Note 5) SWITCH DYNAMICS Turn-On Time Turn-Off Time Break-Before-Make Time Delay (MAX4713 only) POWER SUPPLY Power-Supply Range V+ Supply Current V+ I+ All VIN_ = 0 or V+ C, E +25C C, E 2.7 8 11 15 20 V A tON tOFF tBBM V+ = +2.7V, VNO_ or VNC_ = +1.5V, RL = 300, CL = 35pF, Figure 2 V+ = +2.7V, VNO_ or VNC_ = +1.5V, RL = 300, CL = 35pF, Figure 2 V+ = +2.7V, VNO_ or VNC_ = +1.5V, RL = 300, CL = 35pF, Figure 2 +25C C, E +25C C, E +25C C, E 60 50 240 340 100 500 600 175 225 ns ns ns VIH VIL IIN_ VIN_ = 0 or V+ C, E C, E C, E -5 2 0.6 +5 V V A SYMBOL CONDITIONS TA MIN TYP MAX UNITS
MAX4711/MAX4712/MAX4713
Note 3: Algebraic convention is used in this data sheet; the most negative value is shown in the minimum column. Note 4: RON = RON(MAX) - RON(MIN) Note 5: Leakage parameters are 100% tested at maximum-rated temperature and with dual supplies. Leakage parameters are guaranteed by correlation at +25C. Note 6: Off-isolation = 20 log10 [VCOM_/(VNO_ or VNC_)], VCOM_ = output, VNO_ or VNC_ = input to off switch. Note 7: Between any two switches.
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Fault-Protected, Low-Voltage, Quad SPST Analog Switches MAX4711/MAX4712/MAX4713
Typical Operating Characteristics
(V+ = +5V, V- = -5V, TA = +25C, unless otherwise noted.)
ON-RESISTANCE vs. VCOM (DUAL SUPPLIES)
MAX4711/12/13 toc01
ON-RESISTANCE vs. VCOM AND TEMPERATURE (DUAL SUPPLIES)
V = 5V TA = +85C TA = +25C 15 TA = -40C
MAX4711/12/13 toc02
ON-RESISTANCE vs. VCOM (SINGLE SUPPLY)
MAX4711/12/13 toc03
30 25 ON-RESISTANCE () 20 V = 3.3V 15 V = 5V 10 5 0 -5 -4 -3 -2 -1 0 1 2 3 4 5 VCOM (V) V = 2.7V
25
60 50 ON-RESISTANCE () 40 V+ = +3.3V 30 20 10 0 V+ = +5V V+ = +10V
20 ON-RESISTANCE ()
V+ = +2.7V
10
5
0 -5 -4 -3 -2 -1 0 1 2 3 4 5 VCOM (V)
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 VCOM (V)
ON-RESISTANCE vs. VCOM AND TEMPERATURE (SINGLE SUPPLY)
MAX4711/12/13 toc04
ON-RESISTANCE vs. VCOM AND TEMPERATURE (SINGLE SUPPLY)
MAX4711/12/13 toc05
ON/OFF-LEAKAGE CURRENT vs. TEMPERATURE
MAX4711/12/13 toc06
35 TA = +85C 30 ON-RESISTANCE () 25 20 15 10 5 0 0 TA = -40C TA = +25C
V+ = +5V
50 45 40 ON-RESISTANCE () 35 30 25 20 15 10 5 0 TA = -40C TA = +25C TA = +85C
V+ = +3.3V
1000 100 LEAKAGE CURRENT (nA) 10 1 0.1 ICOM OFF-LEAKAGE 0.01 0.001 0.0001 IN_ OFF-LEAKAGE ICOM ON-LEAKAGE
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 VCOM (V)
0
0.5
1.0
1.5
2.0
2.5
3.0
VCOM (V)
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 TEMPERATURE (C)
CHARGE INJECTION vs. VCOM
MAX4711/12/13 toc07
TURN-ON/TURN-OFF TIME vs. SUPPLY VOLTAGE (DUAL SUPPLIES)
MAX4711/12/13 toc08
TURN-ON/TURN-OFF TIME vs. SUPPLY VOLTAGE (SINGLE SUPPLY)
V+ = +5V 350 300 TIME (ns) 250 200 150 100 50 0 tOFF tON
MAX4711/12/13 toc09
50 40 DUAL SUPPLIES CHARGE (pC) 30
160 V = 5V 140 120 TIME (ns) 100 80 60 tOFF tON
400
20 10
40 0 -10 -6 -4 -2 0 VCOM (V) 2 4 6 SINGLE SUPPLY 20 0 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 SUPPLY VOLTAGE (V)
2
3
4
5
6
7
8
9
10 11 12
SUPPLY VOLTAGE (V)
8
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Fault-Protected, Low-Voltage, Quad SPST Analog Switches MAX4711/MAX4712/MAX4713
Typical Operating Characteristics (continued)
(V+ = +5V, V- = -5V, TA = +25C, unless otherwise noted.)
TURN-ON/TURN-OFF TIME vs. TEMPERATURE (DUAL SUPPLIES)
MAX4711/12/13 toc10
TURN-ON/TURN-OFF TIME vs. TEMPERATURE (SINGLE SUPPLY)
MAX4711/12/13 toc11
SUPPLY CURRENT vs. TEMPERATURE VIN = 0 OR 5V
V = 5V I+ (DUAL SUPPLY) 30 SUPPLY CURRENT (A) 20 10 0 -10 -20 -30 IGND I(DUAL SUPPLY) I+ (SINGLE SUPPLY) -40 -20 0 20 40 60 80 I+ (SINGLE SUPPLY)
MAX4711/12/13 toc12 MAX4711/12/13 toc15
100 90 80 70 TIME (ns) 60 50 40 30 20 10 0 -40 -15 10 35 60 tOFF V = 5V tON
350 300 250 TIME (ns) 200 150 100 50 tOFF (V+ = +5V) 0 tON (V+ = +5V) tOFF (V+ = +3V) tON (V+ = +3V)
40
-40 -40 -15 10 35 60 85 TEMPERATURE (C) TEMPERATURE (C)
85
TEMPERATURE (C)
SUPPLY CURRENT vs. INPUT VOLTAGE
MAX4711/12/13 toc13
LOGIC LEVEL THRESHOLD vs. SUPPLY VOLTAGE
2.3 2.1 LOGIC VOLTAGE (V) 1.9 1.7 1.5 1.3 1.1 tHI tLO
MAX4711/12/13 toc14
FREQUENCY RESPONSE
10 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 INSERTION LOSS -3dB AT 340MHz OFF-ISOLATION -59dB AT 1MHz
160 140 SUPPLY CURRENT (A) 120 100 80 60 40 V+ = +3V 20 0 0 1 2 3 4 5 INPUT VOLTAGE (V) V+ = +5V
RESPONSE (dB)
CROSSTALK
0.9 0.7 2.4 3.4 4.4 5.4 6.4 7.4 8.4 9.4 10.4 SUPPLY VOLTAGE (V)
0.01
0.1
1
10
100
1000
FREQUENCY (MHz)
FAULT TURN-ON DELAY AND RECOVERY TIME
MAX4711/12/13 toc16
FAULT TURN-ON DELAY AND RECOVERY TIME
MAX4711/12/13 toc17
N_(INPUT) COM_(OUTPUT) NC_INPUT 2V/div 0 COM_OUTPUT (300 LOAD) 2V/div 0 1s/div 2s/div
2V/div 0
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9
Fault-Protected, Low-Voltage, Quad SPST Analog Switches MAX4711/MAX4712/MAX4713
Pin Description
PIN MAX4711 1, 16, 9, 8 MAX4712 1, 16, 9, 8 MAX4713 1, 16, 9, 8 NAME IN1, IN2, IN3, IN4 COM1, COM2, COM3, COM4 NC1, NC2, NC3, NC4 NO1, NO2, NO3, NO4 NO1, NO4 NC2, NC3 VGND N.C. V+ FUNCTION Logic Inputs. Fault-protected to (V- + 12V).
2, 15, 10, 7
2, 15, 10, 7
2, 15, 10, 7
Analog Switch Common Terminals
3, 14, 11, 6 -- -- -- 4 5 12 13
-- 3, 14, 11, 6 -- -- 4 5 12 13
-- -- 3, 6 14, 11 4 5 12 13
Fault-Protected Analog Switch Normally Closed Terminals Fault-Protected Analog Switch Normally Open Terminals Fault-Protected Analog Switch Normally Open Terminals Fault-Protected Analog Switch Normally Closed Terminals Negative Supply Voltage Input. Connect to GND for single-supply operation. Ground No Connection. Not internally connected. Positive Supply Input
Detailed Description
The MAX4711/MAX4712/MAX4713 differ considerably from traditional fault-protection switches, with several advantages. First, they are constructed with two parallel FET's allowing very low on-resistance. Second, they allow signals on the NC_ or NO_ pins that are within or slightly beyond the supply rails to be passed through the switch to the COM terminal, allowing rail-to-rail signal operation. Third, when a signal on NC_ or NO_ exceeds the supply rails by about 150mV (a fault condition) the voltage on COM_ is limited to the same polarity supply voltage. Operation is identical for both fault polarities. During a fault condition, the NO_ or NC_ input becomes high impedance regardless of the switch state or load resistance. If the switch is on, the COM_ output current is supplied from V+ or V- by the clamp FET's that are connected from COM to each supply. These FET's can typically source or sink up to 15mA. When power is removed, the fault protection is still in effect. In this case, the NO_ or NC_ terminals are a virtual open circuit. The fault can be up to 12V. The COM_ pins are not fault-protected, they act as normal CMOS switch terminals. If a voltage source is connected to any COM_ pin, it should be limited to the supply voltages. Exceeding the supply voltage will
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cause high currents to flow through the ESD-protected diodes, possibly damaging the device (see Absolute Maximum Ratings).
Pin Compatibility
These switches have identical pinouts to common nonfault-protected CMOS switches. Care should be exercised while considering them for direct replacements in existing printed circuit boards since only the NO_ and NC_ pins of each switch are fault-protected.
Internal Construction
Internal construction is shown in Figure 1, with the analog signal paths shown in bold. A single NO switch is shown; the NC configuration is identical except the logic-level translator is inverting. The analog switch is formed by the parallel combination of N-channel FET (N1) and P-channel FET (P1), which are driven on and off simultaneously according to the input fault condition and the logic-level state.
Normal Operation
Two comparators continuously compare the voltage on the NO_ (or NC_) pin with V+ and V-. When the signal on NO_ or NC_ is between V+ and V- the switch acts normally, with FETs N1 and P1 turning on and off in response to IN_ signals. The parallel combination of N1 and P1 forms a low-value resistor between NO_ (or
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Fault-Protected, Low-Voltage, Quad SPST Analog Switches MAX4711/MAX4712/MAX4713
NORMALLY OPEN SWITCH CONSTRUCTION V+ P2
HIGH FAULT P1 NO_ (NC_) LOW FAULT COM_ N1
IN_
ON
GND
V-ESD DIODE NC SWITCH
N2
Figure 1. Block Diagram
NC_) and COM_ so that signals pass equally well in either direction.
Transient Fault Response and Recovery
When a fast rise-time or fall-time transient on NC_ or NO_ exceeds V+ or V-, the output (COM_) follows the input to the supply rail with only a few nanoseconds delay. This delay is due to the switch on-resistance and circuit capacitance to ground. When the input transient returns to within the supply rails, however, there is a 700ns output recovery delay time. These values depend on the COM_ output resistance and capacitance, and are not production tested or guaranteed. The delays are not dependent on the fault amplitude. Higher COM_ output resistance and capacitance increase recovery times.
Positive Fault Condition
When the signal on NO_ (or NC_) exceeds V+ by about 150mV, the high-fault comparator output is high, turning off FETs N1 and P1. This makes the NO_ (or NC_) input high impedance regardless of the switch state. If the switch state is "off", all FETs are turned off and both NO_ (or NC_) and COM_ are high impedance. If the switch state is "on", clamp FET P2 is turned on, sourcing current from V+ to COM_.
Negative Fault Condition
When the signal on NO_ (or NC_) exceeds V- by about 150mV, the low-fault comparator output is high, turning off FETs N1 and P1. This makes the NO_ (or NC_) input high impedance regardless of the switch state. If the switch state is "off", all FETs are turned off and both NO_ (or NC_) and COM_ are high impedance. If the switch state is "on", clamp FET N2 is turned on, sinking current from COM_ to V-.
COM_ and IN_ Pins
FETs N2 and P2 can source about 15mA from V+ or V- to COM_ in the fault condition. Ensure that if the COM_ pin is connected to a low-resistance load, the absolute maximum current rating of 40mA is never exceeded both in normal and fault conditions.
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Fault-Protected, Low-Voltage, Quad SPST Analog Switches MAX4711/MAX4712/MAX4713
The COM_ pins do not have fault protection. Reverse ESD-protection diodes are internally connected between COM_, and V+ and V-. If a signal on COM_ exceeds V+ or V- by more than a diode drop, one of these diodes will conduct. The IN_ pin can exceed the positive supply voltage, but they can go below the negative supply by only a diode drop. The maximum voltage on these pins is 12V if operating from a single supply, regardless of the supply voltage (including 0 volts), and if operating from dual supplies, the maximum voltage is (V- + 12V).
Chip Information
TRANSISTOR COUNT: 463
Fault-Protection Voltage and Power Off
The maximum fault voltage on the NC_ or NO_ pins is 12V with power off.
Ordering Information (continued)
PART MAX4712CUE MAX4712CSE MAX4712CPE MAX4712EUE MAX4712ESE MAX4712EPE MAX4713CUE MAX4713CSE MAX4713CPE MAX4713EUE MAX4713ESE MAX4713EPE TEMP RANGE 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C -40C to +85C 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C -40C to +85C PIN-PACKAGE 16 TSSOP 16 Narrow SO 16 Plastic Dip 16 TSSOP 16 Narrow SO 16 Plastic Dip 16 TSSOP 16 Narrow SO 16 Plastic Dip 16 TSSOP 16 Narrow SO 16 Plastic Dip
IN_ Logic-Level Thresholds
The logic-level thresholds are CMOS and TTL compatible when using 4.5V to 5.5V or single +4.5V to +11V supplies. When using a +2.7V supply, the logic thresholds are VIH = 2.0V and VIL = 0.6V.
Dual Supplies
The MAX4711/MAX4712/MAX4713 operate with bipolar supplies between 2.7V and 5.5V. The V+ and Vsupplies need not be symmetrical, but their difference should not exceed 11V.
Single Supply
The MAX4711/MAX4712/MAX4713 operate from a single supply between +2.7V and +11V when V- is connected to GND.
Pin Configurations/Functional Diagrams/Truth Tables (continued)
TOP VIEW IN1 1 COM1 2 NO1 3 V- 4 GND 5 NO4 6 COM4 7 IN4
8 16 IN2 15 COM2 14 NO2 13 V+
IN1 1 COM1 2 NO1 3 V- 4 GND 5 NO4 6 COM4 7 IN4
8
16 IN2 15 COM2 14 NC2 13 V+
MAX4712
12 N.C. 11 NO3 10 COM3 9
MAX4713
12 N.C. 11 NC3 10 COM3 9
IN3
IN3
DIP/SO/TSSOP
MAX4712 LOGIC SWITCH 0 1 OFF ON
DIP/SO/TSSOP
LOGIC 0 1 MAX4713 SWITCHES 1, 4 OFF ON SWITCHES 2, 3 ON OFF
SWITCHES SHOWN FOR LOGIC "0" INPUT
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Fault-Protected, Low-Voltage, Quad SPST Analog Switches MAX4711/MAX4712/MAX4713
Test Circuits/Timing Diagrams
V+ V+ NO_ OR NC_ VNO_ OR VNC_ V+ VIN_ 0 50%
VIN_
IN_
MAX4711 MAX4712 MAX4713 COM_
GND VRL CL
VOUT VOUT 0 90%
90%
50
V-
tOFF
tON
V- IS CONNECTED TO GND (0) FOR SINGLE-SUPPLY OPERATION.
Figure 2. Switch Turn-On/Turn-Off Times
V+ VIN_ IN_ IN_ 50 V+ NO_ NC_ VNO_ OR VNC_ VIN_
V+ 50% 0
tR < 5ns tF < 5ns
MAX4713
COM_ COM_ GND VRL VCL VOUT VOUT 0 tOPEN 80%
V- IS CONNECTED TO GND (0) FOR SINGLE-SUPPLY OPERATION.
Figure 3. MAX4713 Break-Before-Make Interval
V+ VIN_ V+ IN_ NO_ OR NC_ VIN_ 0 V+
50
MAX4711 MAX4712 MAX4713
COM_ GND VVOUT CL 1000pF
VOUT
VOUT
V-
VOUT IS THE MEASURED VOLTAGE DUE TO CHARGETRANSFER ERROR Q WHEN THE CHANNEL TURNS OFF. Q = VOUT x CL
V- IS CONNECTED TO GND (0) FOR SINGLE-SUPPLY OPERATION.
Figure 4. Charge Injection ______________________________________________________________________________________ 13
Fault-Protected, Low-Voltage, Quad SPST Analog Switches MAX4711/MAX4712/MAX4713
Test Circuits/Timing Diagrams (continued)
V+ V+ V+ NO_
ADDRESS SELECT
IN_
MAX4711 MAX4712 MAX4713
GND
NC_ COM_ V1MHz CAPACITANCE ANALYZER
VV- IS CONNECTED TO GND (0) FOR SINGLE-SUPPLY OPERATION.
Figure 5. COM_, NO_, NC_ Capacitance
V+ 10nF NETWORK ANALYZER V+ COM_ VIN 50 50 OFF-ISOLATION = 20 log ON LOSS = 20 log VOUT NO_, NC_ GND VMEAS. 50 50 REF. CROSSTALK = 20 log VOUT VIN VOUT VIN VOUT VIN
MAX4711 MAX4712 MAX4713
ADDRESS SELECT IN_
10nF V-
MEASUREMENTS ARE STANDARDIZED AGAINST SHORT AT SOCKET TERMINALS. OFF-ISOLATION IS MEASURED BETWEEN COM_ AND "OFF" NO_ OR NC_ TERMINALS. ON LOSS IS MEASURED BETWEEN COM_ AND "ON" NO_ OR NC_ TERMINALS. CROSSTALK IS MEASURED BETWEEN COM_ TERMINALS WITH ALL SWITCHES ON. SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED. V- IS CONNECTED TO GND (0) FOR SINGLE-SUPPLY OPERATION.
Figure 6. Frequency Response, Off-Isolation, and Crosstalk
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Fault-Protected, Low-Voltage, Quad SPST Analog Switches MAX4711/MAX4712/MAX4713
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.)
TSSOP4.40mm.EPS
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Fault-Protected, Low-Voltage, Quad SPST Analog Switches MAX4711/MAX4712/MAX4713
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.)
SOICN .EPS
INCHES DIM A A1 B C e E H L MAX MIN 0.069 0.053 0.010 0.004 0.014 0.019 0.007 0.010 0.050 BSC 0.150 0.157 0.228 0.244 0.016 0.050
MILLIMETERS MAX MIN 1.35 1.75 0.10 0.25 0.35 0.49 0.19 0.25 1.27 BSC 3.80 4.00 5.80 6.20 0.40 1.27
N
E
H
VARIATIONS:
1
INCHES
MILLIMETERS MIN 4.80 8.55 9.80 MAX 5.00 8.75 10.00 N MS012 8 AA 14 AB 16 AC
TOP VIEW
DIM D D D
MIN 0.189 0.337 0.386
MAX 0.197 0.344 0.394
D A e B A1 L C
0-8
FRONT VIEW
SIDE VIEW
PROPRIETARY INFORMATION TITLE:
PACKAGE OUTLINE, .150" SOIC
APPROVAL DOCUMENT CONTROL NO. REV.
21-0041
B
1 1
16
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Fault-Protected, Low-Voltage, Quad SPST Analog Switches MAX4711/MAX4712/MAX4713
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.)
PDIPN.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.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 17 (c) 2003 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

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