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19-1513; Rev 0; 7/99
1.25, Dual SPST, CMOS Analog Switches
General Description
The MAX4680/MAX4690/MAX4700 dual analog switches feature low on-resistance of 1.25 max. On-resistance is matched between switches to 0.3 max and is flat (0.3 max) over the specified signal range. Each switch can handle Rail-to-Rail(R) analog signals. Off-leakage current is only 5nA max at +85C. These analog switches are ideal in low-distortion applications and are the preferred solution over mechanical relays in automatic test equipment or applications where current switching is required. They have low power requirements, require less board space, and are more reliable than mechanical relays. The MAX4680 has two NC (normally closed) switches, and the MAX4690 has two NO (normally open) switches. The MAX4700 has one NC and one NO switch and features guaranteed break-before-make switching. These devices operate from a +4.5V to +36V single supply or from 4.5V to 20V dual supplies. A separate logic supply pin guarantees TTL/CMOS-logic compatibility while operating across the entire supply voltage range. o Low On-Resistance (1.25 max) o Guaranteed RON Match Between Channels (0.3 max) o Guaranteed RON Flatness Over Specified Signal Range (0.3 max) o Rail-to-Rail Signal Handling o Guaranteed Break-Before-Make (MAX4700) o +4.5V to +36V Single-Supply Operation 4.5V to 20V Dual-Supply Operation o TTL/CMOS-Compatible Control Inputs o >2kV ESD Protection per Method 3015.7
Features
MAX4680/MAX4690/MAX4700
Ordering Information
PART MAX4680CAE MAX4680CWE MAX4680CPE MAX4680EAE MAX4680EWE MAX4680EPE TEMP. RANGE 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C -40C to +85C PIN-PACKAGE 16 SSOP 16 Wide SO 16 Plastic DIP 16 SSOP 16 Wide SO 16 Plastic DIP
Applications
Reed Relay Replacement Test Equipment Communication Systems PBX, PABX Systems Data Acquisition Systems Sample-and-Hold Circuits
Ordering Information continued at end of data sheet.
Pin Configurations/Functional Diagrams/Truth Tables
TOP VIEW
N.C. 1 IN1 2 N.C. 3 V- 4 GND 5 N.C. 6 IN2 7 N.C. 8 16 NC1 15 N.C. 14 COM1 13 V+ N.C. 1 IN1 2 N.C. 3 V- 4 GND 5 N.C. 6 IN2 7 N.C. 8 16 N01 15 N.C. 14 COM1 13 V+ N.C. 1 IN1 2 N.C. 3 V- 4 GND 5 N.C. 6 IN2 7 N.C. 8 16 N01 15 N.C. 14 COM1 13 V+
MAX4680
12 VL 11 COM2 10 N.C. 9 NC2
MAX4690
12 VL 11 COM2 10 N.C. 9 NO2
MAX4700
12 VL 11 COM2 10 N.C. 9 NC1
SSOP/SO/DIP
MAX4680 LOGIC SWITCH 0 ON 1 OFF N.C. = NOT INTERNALLY CONNECTED
SSOP/SO/DIP
MAX4690 LOGIC SWITCH 0 OFF 1 ON SWITCHES SHOWN FOR LOGIC "0" INPUT
SSOP/SO/DIP
LOGIC 0 1 MAX4700 SWITCH 1 SWITCH 2 OFF ON ON OFF
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
________________________________________________________________ Maxim Integrated Products 1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 1-800-835-8769.
1.25, Dual SPST, CMOS Analog Switches MAX4680/MAX4690/MAX4700
ABSOLUTE MAXIMUM RATINGS
V+ to GND ..............................................................-0.3V to +44V V- to GND ...............................................................+0.3V to -44V V+ to V-...................................................................-0.3V to +44V VL to GND.................................................... -0.3V to (V+ + 0.3V) All Other Pins to GND (Note 1) ........... (V- - 0.3V) to (V+ + 0.3V) Continuous Current (COM_, NO_, NC_) ....................... 200mA Peak Current (COM_, NO_, NC_) (pulsed at 1ms, 10% duty cycle) .............................. 300mA Continuous Power Dissipation (TA = +70C) SSOP (derate 7.1mW/C above +70C) ......................571mW Wide SO (derate 9.52mW/C above +70C) ...............762mW Plastic DIP (derate 10.53mW/C above +70C) ..........842mW Operating Temperature Ranges MAX4_ _0C_E ....................................................0C to +70C MAX4_ _0E_E ..................................................-40C to +85C Storage Temperature Range ........................... -65C to +150C Lead Temperature (soldering, 10sec) ............................+300C
Note 1: Signals on NC_, NO_, COM_, or IN_ exceeding V+ or V- are clamped by internal diodes. Limit forward diode current to maximum current rating.
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+ = +15V, V- = -15V, VL = +5V, VIN_H = +2.4V, VIN_L = +0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 2) PARAMETER ANALOG SWITCH Input Voltage Range (Note 3) COM_ to NO_ or NC_ On-Resistance COM_ to NO_ or NC_ On-Resistance Match Between Channels (Notes 3, 4) COM_ to NO_ or NC_ On-Resistance Flatness (Notes 3, 5) Off-Leakage Current (NO_ or NC_) (Note 6) COM_ Off-Leakage Current (Note 6) COM_ On-Leakage Current (Note 6) LOGIC INPUT Input Current with Input Voltage High Input Current with Input Voltage Low IIN_H IIN_L IN_ = 2.4V, all others = 0.8V IN_ = 0.8V, all others = 2.4V -0.5 -0.5 0.001 0.001 0.5 A 0.5 VCOM_, VNO_, VNC_ RON TA = +25C ICOM_ = 10mA, VNO_ or VNC_ = 10V, TA = TMIN to TMAX ICOM_ = 10mA, VNO_ or VNC_= 10V ICOM_ = 10mA; VNO_ or VNC_ = -5V, 0, 5V VCOM_ = 10V, - VNO_ or VNC_ = +10V VCOM_ = 10V, - VNO_ or VNC_ = +10V VCOM_ = 10V, VNO_ or VNC_= 10V or floating TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX -0.5 -5 -0.5 -2.5 -1 -20 0.01 0.01 0.01 0.06 V0.9 V+ 1.25 1.5 0.09 0.3 0.5 0.3 0.5 0.5 5 0.5 2.5 1 nA 20 nA nA V SYMBOL CONDITIONS MIN TYP MAX UNITS
RON
RFLAT(ON)
INO_, INC_ ICOM_(OFF)
ICOM_(ON)
2
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1.25, Dual SPST, CMOS Analog Switches
ELECTRICAL CHARACTERISTICS--Dual Supplies (continued)
(V+ = +15V, V- = -15V, VL = +5V, VIN_H = +2.4V, VIN_L = +0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 2) PARAMETER Logic Input Voltage High Logic Input Voltage Low POWER SUPPLY Power-Supply Range Positive Supply Current Negative Supply Current Logic Supply Current Ground Current I+ IIL IGND VIN_ = 0 or 5V VIN_ = 0 or 5V VIN_ = 0 or 5V VIN_ = 0 or 5V TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX 5 30 550 -53 -65 115 115 520 90 4.5 -0.5 -5 -0.5 -5 -0.5 -5 -0.5 -5 130 0.01 0.01 0.01 0.01 20.0 0.5 5 0.5 5 0.5 5 0.5 5 275 400 175 300 V A A A A SYMBOL VIN_H VIN_L CONDITIONS MIN 2.4 0.8 TYP MAX UNITS V V
MAX4680/MAX4690/MAX4700
SWITCH DYNAMIC CHARACTERISTICS Turn-On Time Turn-Off Time Break-Before-Make Time (MAX4700 only) Charge Injection Off-Isolation (Note 7) Crosstalk (Note 8) NC_ or NO_ Capacitance COM Off-Capacitance On-Capacitance tON tOFF tOPEN Q VISO VCT COFF CCOM CCOM VCOM_ = 10V, Figure 2 VCOM_ = 10V, Figure 2 ns ns ns pC dB dB pF pF pF
VCOM_ = 10V, Figure 3, TA = +25C CL = 1.0nF, VGEN = 0, RGEN = 0, Figure 4 RL = 50, CL = 5pF, f = 1MHz, Figure 5 RL = 50, CL = 5pF, f = 1MHz, Figure 6 f = 1MHz, Figure 7 f = 1MHz, Figure 7 f = 1MHz, Figure 8
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3
1.25, Dual SPST, CMOS Analog Switches MAX4680/MAX4690/MAX4700
ELECTRICAL CHARACTERISTICS-Single Supply
(V+ = +12V, V- = 0, VL = +5V, VINH = 2.4V, VINL = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 2) PARAMETER ANALOG SWITCH Input Voltage Range (Note 3) COM_ to NO_ or NC_ On-Resistance COM_ to NO_ or NC_ On-Resistance Match Between Channels (Notes 3, 4) COM_ to NO_ or NC_ On-Resistance Flatness (Notes 3, 5) Off-Leakage Current (NO_ or NC_) (Notes 6, 9) VCOM_, VNO_, VNC_ RON ICOM_ = 10mA, VNO_ or VNC_ = 10V ICOM_ = 10mA, VNO_ or VNC_ = 10V ICOM_ = 10mA; VNO_ or VNC_ = 3V, 6V, 9V VCOM_ = 1V, 10V; VNO_ or VNC_ = 10V, 1V VNO_ or VNC_ = 10V, 1V; VCOM_ = 1V, 10V TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX -0.5 -5 -0.5 -5 -1 -20 0.02 0.01 0.01 0.2 0.1 GND 1.6 V+ 3 3.5 0.4 0.5 0.4 0.5 0.5 nA 5 0.5 nA 5 1 nA 20 V SYMBOL CONDITIONS MIN TYP MAX UNITS
RON
RFLAT(ON)
INO_, INC_
COM_ Off-Leakage Current (Notes 6, 9)
ICOM_(OFF)
COM_ On-Leakage Current (Notes 6, 9) LOGIC INPUT Input Current with Input Voltage High Input Current with Input Voltage Low Logic Input Voltage High Logic Input Voltage Low POWER SUPPLY Power-Supply Range Positive Supply Current Logic Supply Current Ground Current
ICOM_(ON)
VCOM_ = 1V, 10V; TA = +25C VNO_ or VNC_ = 1V, 10V, TA = TMIN to TMAX or floating
IIN_H IIN_L VIN_H VIN_L
IN_ = 2.4V, all others = 0.8V IN_ = 0.8V, all others = 2.4V
-0.5 -0.5 2.4
0.001 0.001
0.5 0.5
A A V
0.8 +4.5 +36.0 0.001 0.001 0.001 0.5 5 0.5 5 0.5 5
V V A A A
I+ IL IGND
VIN_ = 0 or 5V VIN_ = 0 or 5V VIN_ = 0 or 5V
TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX
-0.5 5 -0.5 5 -0.5 5
4
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1.25, Dual SPST, CMOS Analog Switches
ELECTRICAL CHARACTERISTICS--Single Supply (continued)
(V+ = +12V, V- = 0, VL = +5V, VIN_H = 2.4V, VIN_L = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 2) PARAMETER SYMBOL VCOM_ = 10V, Figure 2 VCOM_ = 10V, Figure 2 CONDITIONS TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX 5 125 -60 -65 175 175 275 100 MIN TYP 225 MAX 400 500 250 350 UNITS
MAX4680/MAX4690/MAX4700
SWITCH DYNAMIC CHARACTERISTICS Turn-On Time (Note 3) Turn-Off Time (Note 3) Break-Before-Make Time (Note 3) Charge Injection Crosstalk (Note 8) NC_ or NO_ Capacitance COM Off-Capacitance On-Capacitance tON tOFF tOPEN Q VCT COFF CCOM CCOM ns ns ns pC dB pF pF pF
VCOM_ = 10V, Figure 3, TA = +25C CL = 1.0nF, VGEN = 0, RGEN = 0, Figure 4 RL = 50, CL = 5pF, f = 1MHz, Figure 6 f = 1MHz, Figure 7 f = 1MHz, Figure 7 f = 1MHz, Figure 8
Note 2: The algebraic convention, where the most negative value is a minimum and the most positive value a maximum, is used in this data sheet. Note 3: Guaranteed by design. Note 4: RON = RON(MAX) - RON(MIN). Note 5: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specified analog signal range. Note 6: Leakage parameters are 100% tested at maximum-rated hot temperature and guaranteed by correlation at +25C. Note 7: Off-isolation = 20log10 [VCOM / (VNC or VNO)], VCOM = output, VNC or VNO = input to off switch. Note 8: Between any two switches. Note 9: Leakage testing at single supply is guaranteed by testing with dual supplies.
Typical Operating Characteristics
(TA = +25C, unless otherwise noted.)
ON-RESISTANCE vs. VCOM (DUAL SUPPLIES)
MAX4680 TOC01
ON-RESISTANCE vs. VCOM AND TEMPERATURE (DUAL SUPPLIES)
MAX4680 TOC02
ON-RESISTANCE vs. VCOM (SINGLE SUPPLY)
V- = GND V+ = +5V 4
MAX4680 TOC03
2.5 V+, V- = 5V 2.0
1.2 V+, V- = 15V 1.1 1.0 RON () TA = +85C
5
RON ()
V+, V- = 15V 1.0
0.8 0.7 0.6 TA = +25C
RON ()
1.5
0.9
3 V+ = +12V 2
0.5 V+, V- = 20V 0 -20 -16 -12 -8 -4 0 4 8 12 16 20 VCOM (V)
0.5 0.4
TA = -40C
1 V+ = +24V 0
-15 -12 -9
-6
-3
0
3
6
9
12 15
0
2
4
6
8 10 12 14 16 18 20 22 24 VCOM (V)
VCOM (V)
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5
1.25, Dual SPST, CMOS Analog Switches MAX4680/MAX4690/MAX4700
Typical Operating Characteristics (continued)
(TA = +25C, unless otherwise noted.)
ON-RESISTANCE vs. VCOM AND TEMPERATURE (SINGLE SUPPLY)
MAX4680 TOC04
ON/OFF-LEAKAGE vs. TEMPERATURE
V+ = +15V V- = -15V
MAX4680 TOC05
CHARGE INJECTION vs. VCOM
MAX4680-06
2.25 2.00 1.75 1.50 RON () 1.25 1.00 0.75 0.50 0.25 0 0 1 2 3 4 5 6 7 8 V+ = +12V V- = GND TA = -40C TA = +25C TA = +85C
10
800 600 400 Q (pC) 200 0 V+ = +15V V- = -15V
1 LEAKAGE (nA)
0.1
ON-LEAKAGE OFF-LEAKAGE
0.01
-200 -400
V+ = +12V V- = GND
9 10 11 12
0.001 -40
-600 -20 0 20 40 60 80 100 -20 -15 -10 -5 0 VCOM (V) 5 10 15 20 TEMPERATURE (C)
VCOM (V)
POWER-SUPPLY CURRENT vs. TEMPERATURE
V+ = +15V V- = -15V
MAX4680 TOC07
FREQUENCY RESPONSE
0 -10 -20 -30 ON-PHASE ON-RESPONSE
MAX4680 TOC 08
10,000 1000 100 10 1 0.1 0.01 0.001 -40 -20 0 20 40 60 80 I+
180 90 0 PHASE (degrees) -90 -180 -270
I-
LOSS (dB)
I+, I- (nA)
-40 -50 -60 -70 -80 -90 OFF-ISOLATION V+ = +15V V- = -15V INPUT = 0dBm 50 IN AND OUT 0.1 1 FREQUENCY (MHz) 10
-360 -450 -540 -630
100
-100 0.01
-720 100
TEMPERATURE (C)
6
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1.25, Dual SPST, CMOS Analog Switches
Pin Description
PIN NAME MAX4680 1, 3, 6, 8, 10, 15 2, 7 4 5 9, 16 11, 14 12 13 - - - MAX4690 1, 3, 6, 8, 10, 15 2, 7 4 5 - 11, 14 12 13 9, 16 - - MAX4700 1, 3, 6, 8, 10, 15 2, 7 4 5 - 11, 14 12 13 - 9 16 N.C. IN1, IN2 VGND NC2, NC1 COM2, COM1 VL V+ NO2, NO1 NC1 NO1 No connection. Not internally connected. Connect to GND or lowimpedance point to improve on/off-isolation. Logic-Control Digital Inputs Negative Analog Supply Voltage Input. Connect to GND for singlesupply operation. Ground Analog Switch Normally Closed Terminals Analog Switch Common Terminals Logic Supply Input Positive Analog Supply Input Analog Switch Normally Open Terminals Analog Switch Normally Closed Terminal Analog Switch Normally Open Terminal FUNCTION
MAX4680/MAX4690/MAX4700
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7
1.25, Dual SPST, CMOS Analog Switches MAX4680/MAX4690/MAX4700
___________Applications Information
Overvoltage Protection
Proper power-supply sequencing is recommended for all CMOS devices. Do not exceed the absolute maximum ratings because stresses beyond the listed ratings can cause permanent damage to the devices. Always sequence V+ on first, then V-, followed by the logic inputs, NO, or COM. If power-supply sequencing is not possible, add two small signal diodes (D1, D2) in series with the supply pins and a Schottky diode between V+ and VL for overvoltage protection (Figure 1). Adding diodes reduces the analog signal range to one diode drop below V+ and one diode drop above V-, but does not affect the devices' low switch resistance and low-leakage characteristics. Device operation is unchanged, and the difference between V+ and Vshould not exceed 44V.
V+ +15V D1 VL
MAX4680 MAX4690 MAX4700
*
COM_
*
NO_
*
*
VD2 -15V * INTERNAL PROTECTION DIODES
Figure 1. Overvoltage Protection Using External Blocking Diodes
+5V VL COM_
+15V V+ NO_ OR NC_
MAX4680 MAX4690 MAX4700
SWITCH OUTPUT VO RL 100 CL 35pF VO SWITCH OUTPUT 0 t ON LOGIC INPUT +3V 50% 0 t r < 20ns t f < 20ns
SWITCH V COM_ INPUT
t OFF
IN_ LOGIC INPUT GND 0 V-15V
0.9V0
0.9V0
REPEAT TEST FOR EACH SWITCH. FOR LOAD CONDITIONS, SEE Electrical Characteristics. CL INCLUDES FIXTURE AND STRAY CAPACITANCE. RL VO = VCOM RL + RON
(
)
LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES THAT HAVE THE OPPOSITE LOGIC SENSE.
Figure 2. Switching-Time Test Circuit
8
_______________________________________________________________________________________
1.25, Dual SPST, CMOS Analog Switches MAX4680/MAX4690/MAX4700
MAX4700
VCOM1 VCOM2 COM1 COM2 IN_ LOGIC INPUT GND
+15V V+
LOGIC INPUT NO NC RL2 VOUT2 CL2 RL1 VOUT1 CL1 SWITCH OUTPUT 1 (VOUT1) SWITCH OUTPUT 2 (VOUT2) RL = 100 CL = 35pF
+3V 50% 0V 0.9 * V0UT1 0V
V-15V
0.9 * VOUT2 0V tD tD
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
Figure 3. Break-Before-Make Interval (MAX4700 only)
MAX4680 MAX4690 MAX4700
RGEN
+5V VL COM_
+15V V+ VO NC_ OR NO_ CL IN VVO VIN
VO
V GEN GND
OFF
ON
OFF
-15V VIN = +3V
VIN
OFF
ON Q = (V O )(C L )
OFF
VIN DEPENDS ON SWITCH CONFIGURATION; INPUT POLARITY DETERMINED BY SENSE OF SWITCH.
Figure 4. Charge-Injection Test Circuit
_______________________________________________________________________________________
9
1.25, Dual SPST, CMOS Analog Switches MAX4680/MAX4690/MAX4700
+15V
+5V
MAX4680 MAX4690 MAX4700
SIGNAL GENERATOR 0dBm
+15V
+5V
MAX4680 MAX4690 MAX4700
N_1 IN2 0 OR +3.0V 50
SIGNAL GENERATOR 0dBm
V+ COM1 IN1
VL
V+ COM_
VL 0 OR +3.0V
IN_ ANALYZER RL -15V NC_ OR NO_ GND V-
0 OR +3.0V N_2 GND RL -15V COM2 V-
ANALYZER
NC
Figure 5. Off-Isolation Test Circuit
Figure 6. Crosstalk Test Circuit
+15V
+5V
MAX4680 MAX4690 MAX4700
+15V
+5V
MAX4680 MAX4690 MAX4700
V+ COM_
VL CAPACITANCE METER IN_
V+ COM_
VL
IN_ 0 OR +3.0V f = 1MHz NC_ OR NO_
CAPACITANCE METER NC_ OR NO_ f = 1MHz GND V-
0 OR +3.0V
GND
V-
-15V
-15V
Figure 7. Switch Off-Capacitance Test Circuit
Figure 8. Switch On-Capacitance Test Circuit
10
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1.25, Dual SPST, CMOS Analog Switches
Ordering Information (continued)
PART MAX4690CAE MAX4690CWE MAX4690CPE MAX4690EAE MAX4690EWE MAX4690EPE MAX4700CAE MAX4700CWE MAX4700CPE MAX4700EAE MAX4700EWE MAX4700EPE 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 SSOP 16 Wide SO 16 Plastic DIP 16 SSOP 16 Wide SO 16 Plastic DIP 16 SSOP 16 Wide SO 16 Plastic DIP 16 SSOP 16 Wide SO 16 Plastic DIP
___________________Chip Information
TRANSISTOR COUNT: 108
MAX4680/MAX4690/MAX4700
Package Information
SSOP.EPS
______________________________________________________________________________________
11
1.25, Dual SPST, CMOS Analog Switches MAX4680/MAX4690/MAX4700
Package Information (continued)
SOICW.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.
12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 (c) 1999 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

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