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19-0185; Rev 1; 11/94
Precision, CMOS Analog Switches
_______________General Description
The MAX317/MAX318/MAX319 are precision, CMOS, monolithic analog switches. The single-pole singlethrow (SPST) MAX317 is normally closed (NC), the SPST MAX318 is normally open (NO), and the singlepole double-throw (SPDT) MAX319 has one normally open and one normally closed switch. All three parts offer low on resistance (less than 35), guaranteed to match within 2 between channels and to remain flat over the analog signal range (3 max). They also offer low leakage (less than 250pA at +25C and less than 6nA at +85C) and fast switching (turn-on time less than 175ns and turn-off time less than 145ns). The MAX317/MAX318/MAX319 are fabricated with Maxim's new improved silicon-gate process. Design improvements guarantee extremely low charge injection (10pC), low power consumption (35W), and electrostatic discharge (ESD) greater than 2000V. The 44V maximum breakdown voltage allows rail-to-rail analog signal handling capability.
____________________________Features
o Low On Resistance <20 Typical (35 Max) o Guaranteed Matched On Resistance Between Channels <2 o Guaranteed Flat On Resistance over Analog Signal Range 3 Max o Guaranteed Charge Injection <10pC o Guaranteed Off-Channel Leakage <6nA at +85C o ESD Guaranteed > 2000V per Method 3015.7 o Single-Supply Operation (+10V to +30V) Bipolar-Supply Operation (4.5V to 20V) o TTL-/CMOS-Logic Compatible o Rail-to-Rail Analog Signal Handling Capability
MAX317/MAX318/MAX319
______________Ordering Information
PART MAX317CPA MAX317CSA MAX317CJA MAX317C/D MAX317EPA MAX317ESA MAX317EJA MAX317MJA TEMP. RANGE 0C to +70C 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C -40C to +85C -55C to +125C PIN-PACKAGE 8 Plastic DIP 8 SO 8 CERDIP Dice* 8 Plastic DIP 8 SO 8 CERDIP 8 CERDIP
________________________Applications
Sample-and-Hold Circuits Guidance and Control Systems Heads-Up Displays Test Equipment Military Radios Communications Systems Battery-Powered Systems PBX, PABX
Ordering Information continued on last page. * Contact factory for dice specifications.
_____________________Pin Configurations/Functional Diagrams/Truth Tables
TOP VIEW
COM N.C. 1 2 8 7 6 NC VIN VL COM N.C. 1 2 8 7 6 NO VIN VL COM NC 1 2 8 7 6 NO VIN VL
GND 3 V+ 4
GND 3 V+ 4
GND 3 V+ 4
MAX317
DIP/SO
MAX317 LOGIC SWITCH 0 1 ON OFF
5
MAX318
DIP/SO
MAX318 LOGIC SWITCH 0 1 OFF ON
5
MAX319
DIP/SO
MAX319 NC ON OFF
5
LOGIC 0 1
NO OFF ON
N.C. = No Connect NC = Normally Closed
SWITCHES SHOWN FOR LOGIC "0" INPUT
_______________________________________________________________________ Maxim Integrated Products
1
Call toll free 1-800-998-8800 for free samples or literature.
Precision, CMOS Analog Switches MAX317/MAX318/MAX319
ABSOLUTE MAXIMUM RATINGS
Voltage Referenced to VV+....................................................................................+44V GND ................................................................................+25V VL .................................................(GND - 0.3V) to (V+ + 0.3V) IN, COM, NC, NO....................(V- - 2V) to (V+ + 2V) or 30mA, whichever occurs first Continuous Current (any terminal) .....................................30mA Peak Current, NC, NO, COM (pulsed at 1ms, 10% duty cycle max)..........................100mA ESD .................................................................................2000V Note 1: All leads are soldered or welded to PC board.
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.
Continuous Power Dissipation (TA = +70C) (Note 1) Plastic DIP (derate 9.09mW/C above +70C)............727mW SO (derate 5.88mW/C above +70C) ........................471mW CERDIP (derate 8.00mW/C above +70C) ................640mW Operating Temperature Ranges: MAX31_C_ _.......................................................0C to +70C MAX31_E_ _ ....................................................-40C to +85C MAX31_MJA..................................................-55C to +125C Storage Temperature Range ............................-55C to +150C Lead Temperature (soldering, 10sec) ............................+300C
ELECTRICAL CHARACTERISTICS -- Dual Supplies
(V+ = 15V, V- = -15V, VL = 5V, GND = 0V, VINL = 0.8V, VINH = 2.4V, TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER Analog-Signal Range
SYMBOL VCOM, (Note 3) VNO, VNC
CONDITIONS
TEMP.
MIN
TYP MAX (Note 2) 15 20 35 30 45 2 3 3 5
UNITS V
-15 C, E M
On Resistance On Resistance Match Between Channels (Note 4) On Resistance Flatness (Note 4)
RON
VCOM = 12.5V, I(NC or NO) = -10mA, V+ = 13.5V, V- = -13.5V I(NC OR NO) = -10mA, VCOM = 10V or -10V, V+ = 15V, V- = -15V I(NC OR NO) = -10mA, VCOM = 5V or -5V, V+ = 15V, V- = -15V V+ = 16.5V, V- = -16.5V, VCOM = 15.5V, VNC or VNO = 15.5V MAX317, MAX318
TA = +25C
TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C C, E M TA = +25C C, E M TA = +25C -0.25 -6 -20 -0.25 -6 -20 -0.75 -10 -60 -0.4 -10 -40 -0.75 -10 -60 -0.1 -0.1
RON RON INC(OFF) or INO(OFF)

0.25 6 20 0.25 6 20 0.75 10 60 0.4 10 40 0.75 10 60 nA nA nA
NO or NC Off Leakage Current
COM Off Leakage Current
V+ = 16.5V, ICOM(OFF) V- = -16.5V, VCOM = 15.5V, - VNC or VNO = +15.5V
MAX319
C, E M TA = +25C C, E M TA = +25C
COM On Leakage Current
ICOM(ON)
V+ = 16.5V, V- = -16.5V, VNC or VNO = VD = 15.5V
MAX317, MAX318
MAX319
C, E M
2
________________________________________________________________________________________________
Precision, CMOS Analog Switches
ELECTRICAL CHARACTERISTICS -- Dual Supplies (continued)
(V+ = 15V, V- = -15V, VL = 5V, GND = 0V, VINL = 0.8V, VINH = 2.4V, TA = TMIN to TMAX, unless otherwise noted.)
MAX317/MAX318/MAX319
PARAMETER LOGIC INPUT Logic Input Current (Input Voltage High) Logic Input Current (Input Voltage Low) DYNAMIC Turn-On Time Turn-Off Time Transition Time Break-Before-Make Interval Charge Injection Off Isolation (Note 5) Crosstalk (Note 6) COM Off Capacitance Off Capacitance NC or NO Channel-On Capacitance COM Terminal SUPPLY Positive Supply Current Negative Supply Current Logic Supply Current Ground Current
SYMBOL
CONDITIONS
TEMP.
MIN
TYP MAX (Note 2)
UNITS
IIH IIL
VIN = 2.4V VIN = 0.8V
-0.5 -0.5
0.005 0.005
0.5 0.5
A A
tON tOFF tTRANS tD Q OIRR
MAX317, MAX318, Figure 2, VCOM = 10V MAX317, MAX318, Figure 2, VCOM = 10V MAX319, Figure 3, VNO = 10V, VNC = 10V MAX319, Figure 4, VNO = VNC = 10V VGEN = 0V, Figure 5 RL = 50, CL = 5pF, f = 1MHz, Figure 7 RL = 50, CL = 5pF, f = 1MHz, Figure 8
TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C TA = +25C TA = +25C TA = +25C TA = +25C TA = +25C TA = +25C 5
100 60
175 250 145 210 175 250
ns ns ns ns
13 3 68 85 8 8 30 35 10
pC dB dB pF pF pF
CCOM(OFF) VCOM = 0V, f = 1MHz, Figure 8 C(OFF) CCOM(ON) VCOM = 0V, f = 1MHz, Figure 8 VS = 0V, f = 1MHz, Figure 9 MAX317, MAX318 MAX319 VIN = 0V or 5V, V+ = 16.5V, V- = -16.5V IIL IGND VIN = 0V or 5V, V+ = 16.5V, V- = -16.5V VIN = 0V or 5V, V+ = 16.5V, V- = -16.5V VIN = 0V or 5V, V+ = 16.5V, V- = -16.5V
I+
TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX
-1 -5 -1 -5 -1 -5 -1 -5
0.0001 -0.0001 0.0001 -0.0001
1 5 1 5 1 5 1 5
A A A A
_______________________________________________________________________________________
3
Precision, CMOS Analog Switches MAX317/MAX318/MAX319
ELECTRICAL CHARACTERISTICS -- Single Supply
(V+ = 12V, V- = 0V, VL = 5V, GND = 0V, VINH = 2.4V, VINL = 0.8V, TA = +25C, unless otherwise noted.)
PARAMETER SWITCH Analog-Signal Range
SYMBOL
CONDITIONS
MIN
TYP MAX (Note 2)
UNITS
VCOM, VNO, VNC R(ON) tON tOFF tD Q
(Note 3)
0
12
V
Drain-Source On Resistance DYNAMIC Turn-On Time Turn-Off Time Break-Before-Make Time Delay Charge Injection SUPPLY Positive Supply Current Negative Supply Current Logic Supply Current Ground Current
I(NC or NO) = -10mA, VCOM = 3.8V, V+ = 10.8V VCOM = 8V, Figure 2 VCOM = 8V, Figure 2 MAX319, RL = 1000, CL = 35pF, Figure 4 CL = 10nF, VGEN = 0V, RGEN = 0V, Figure 5 V+ = 13.2V, all channels on or off, VIN = 0V or 5V, VL = 5.25V V+ = 13.2V, all channels on or off, VIN = 0V or 5V, VL = 5.25V VL = 5.25V, all channels on or off, VIN = 0V or 5V VL = 5.25V, all channels on or off, VIN = 0V or 5V
40 110 40 60 2
100
ns ns ns
10
pC
I+ IIL IGND
0.0001 0.0001 0.0001 -0.0001
A A A A
Note 2: Typical values are for design aid only, not guaranteed, not subject to production testing. Note 3: Guaranteed by design. Note 4: On resistance match between channels and flatness are guaranteed only with bipolar-supply operation. Note 5: Off Isolation = 20log10 ( VCOM ) , VCOM = output, VNC or VNO = input to off switch. VNC or VNO Note 6: Between any two switches.
4
_______________________________________________________________________________________
Precision, CMOS Analog Switches
__________________________________________Typical Operating Characteristics
(TA = +25C, unless otherwise noted).
MAX317/MAX318/MAX319
ON RESISTANCE vs. VCOM AND POWER-SUPPLY VOLTAGE
MAX317-01
ON RESISTANCE vs. VCOM AND TEMPERATURE
MAX317-02
ON RESISTANCE vs. VCOM AND TEMPERATURE
V- = 0V 120 100 RON () 80 60 V+ = 5V
MAX317-03
50 45 40 35 RON () 30 25 20 15 10 5
RON ()
A: V+ = 5V, V- = -5V B: V+ = 10V, V- = -10V C: V+ = 15V, V- = -15V D: V+ = 20V, V- = -20V
35 30 25 20 15 V+ = 15V V- = -15V TA = +125C TA = +85C
140
A
B
C D
TA = -55C 10 5 TA = +25C 40 20 -20 -10 0 VCOM (V) 10 20 0 5 10 VCOM (V) 15 20 V+ = 10V V+ = 15V V+ = 20V
-20
-10
0 VCOM (V)
10
20
ON RESISTANCE vs. VCOM (SINGLE-SUPPLY)
MAX317-04
OFF LEAKAGE CURRENTS vs. TEMPERATURE
MAX317-05
ON LEAKAGE CURRENTS vs. TEMPERATURE
V+ = 16.5V V- = -16.5V VCOM = 15V VNC OR VNO = 15V
MAX317-06
70 60 50 RON () TA = +85C 40 TA = +25C 30 20 10 0 5 10 VCOM (V) 15 V+ = 12V V- = 0V TA = +125C
100 10 1 0.1 0.01 V+ = 16.5V V- = -16.5V VCOM = 15V VNC OR VNO = +15V
100 10 1 0.1 0.01 0.001 0.0001
OFF LEAKAGE
0.001 0.0001 20 -55 +25 TEMPERATURE (C) +125
ON LEAKAGE
-55
+25 TEMPERATURE (C)
+125
CHARGE INJECTION vs. ANALOG VOLTAGE
MAX317-07
SUPPLY CURRENT vs. TEMPERATURE
A: B: C: A B C I+ at V+ = 16.5V I- at V- = -16.5V IL at VL = 5V
MAX317-08
60 40 20 Q (pC) 0 -20 -40 -60 -20 -15 -10 -5 0 VCOM (V) 5 10 15 V+ = 15V V- = -15V
100 10 1 0.1 0.01 0.001 0.0001
20
I+, I-, IL (A)
-55
+25 TEMPERATURE (C)
+125
_______________________________________________________________________________________
5
Precision, CMOS Analog Switches MAX317/MAX318/MAX319
_______________________________________________________________________Pin Description
PIN MAX317 1 2 -- 3 4 5 6 7 8 -- MAX318 1 2 -- 3 4 5 6 7 -- 8 MAX319 1 -- 8 3 4 5 6 7 2 -- NAME COM N.C. NO GND V+ VL IN VNC NO FUNCTION Analog-switch common terminal No connect -- not internally connected Analog-switch normally open terminal Logic ground Analog-signal positive supply input Logic-level positive supply input Logic-level input Analog-signal negative supply input Analog-switch normally closed terminal Analog-switch normally open terminal
__________Applications Information
Operation with Supply Voltages Other Than 15V
The main limitation of supply voltages other than 15V is analog signal range reduction. The MAX317/ MAX318/MAX319 switches operate with bipolar supplies of 5V to 20V. Typical Operating Characteristics graphs show typical on resistance for 15V, 10V, and 5V supplies. Switching times increase by a factor of two or more for operation at 5V. The MAX317/MAX318/MAX319 can operate from unipolar supplies of +10V to +30V. Both parts can also operate from unbalanced supplies such as +24V and -5V. Connect V- to 0V when operating with a single supply. This means that VL must be connected to +5V to be TTL compatible, or to V+ for CMOS logic input levels.
adding two small signal diodes in series with the supply pins (Figure 1). Adding the diodes reduces the analog signal range to 1V below V+ and 1V below V-, but low switch resistance and low leakage characteristics are unaffected. Device operation is unchanged, and the difference between V+ to V- should not exceed +44V.
V+
V+
NO_ COM_ Vg
Overvoltage Protection
Proper power-supply sequencing is recommended for all CMOS devices. It is important not to exceed the absolute maximum ratings because stresses beyond the listed ratings may cause permanent damage to the devices. Always sequence V+ on first, followed by VL, V-, and logic inputs. If power-supply sequencing is not possible, protect the devices from overvoltage by
V-
V-
Figure 1. Overvoltage Protection Using Blocking Diodes
6
_______________________________________________________________________________________
Precision, CMOS Analog Switches
_____________________________________________________Test Circuits/Timing Diagrams
MAX317/MAX318/MAX319
+5V LOGIC INPUT +3V 50% 0V t R < 20ns t F < 20ns SWITCH INPUT t OFF IN VO SWITCH OUTPUT 0V t ON 0.9V0 0.9V0 LOGIC INPUT GND VL COM
+15V V+ NC OR NO
MAX317 MAX318
SWITCH OUTPUT VO RL 300 CL 35pF
SWITCH V COM INPUT
V-
-15V 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. MAX317/MAX318 Switching-Time Test Circuit
MAX319
+15V LOGIC INPUT +3V 50% 0V NO t TRANS SWITCH OUTPUT VCOM V01 0.8V 02 V COM V02 t TRANS 0.8V 01 LOGIC INPUT IN GND V-15V CL INCLUDES FIXTURE AND STRAY CAPACITANCE. RL 1000 CL 35pF t R < 20ns t F < 20ns NC V+ +5V VL COM VO
Figure 3. MAX319 Transition Time
_______________________________________________________________________________________
7
Precision, CMOS Analog Switches MAX317/MAX318/MAX319
______________________________________Test Circuits/Timing Diagrams (continued)
LOGIC INPUT
+3V 50% 0V VCOM +10V VO1 0.9VO IN1, IN2 VO2 0.9V0 tD tD LOGIC INPUT NC NO
+5V VL
+15V V+ COM
MAX319
VO RL 300 CL 35pF
SWITCH OUTPUT 1
0V VCOM
GND
V-15V
SWITCH OUTPUT 2
V0
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
Figure 4. MAX319 Break-Before-Make Test Circuit
+5V VO
+15V V+
MAX317 MAX318 MAX319
VO CL 10nF
VO IN OFF ON OFF V GEN
COM
NC OR NO V-
GND
IN
OFF
ON Q = (V O )(C L )
OFF
-15V VIN = +3V
IN DEPENDS ON SWITCH CONFIGURATION; INPUT POLARITY DETERMINED BY SENSE OF SWITCH.
Figure 5. Charge-Injection Test Circuit
8
_______________________________________________________________________________________
Precision, CMOS Analog Switches
______________________________________Test Circuits/Timing Diagrams (continued)
MAX317/MAX318/MAX319
C SIGNAL GENERATOR 0dBm
+15V
+5V
MAX317 MAX318 MAX319
C
+15V
+5V
MAX319
50
VL COM IN 0V, 2.4V
SIGNAL GENERATOR 0dBm
VL
COM
NC
0V, 2.4V
IN
ANALYZER RL
NC OR NO GND VC
ANALYZER RL
NO GND VC
-15V -15V
Figure 6. Off-Isolation Test Circuit
Figure 7. MAX319 Crosstalk Test Circuit
C
+15V
+5V
MAX317 MAX318 MAX319
C
+15V
+5V
MAX317 MAX318 MAX319
V+ COM
VL CAPACITANCE METER IN
V+ COM
VL
CAPACITANCE METER NC OR NO f = 1MHz GND VC
2.4V f = 1MHz NC OR NO GND V-
IN
0V
C
-15V
-15V
Figure 8. Channel-Off Capacitance Test Circuit
Figure 9. Channel-On Capacitance Test Circuit
_______________________________________________________________________________________
9
Precision, CMOS Analog Switches MAX317/MAX318/MAX319
__Ordering Information (continued)
PART MAX318CPA MAX318CSA MAX318CJA MAX318C/D MAX318EPA MAX318ESA MAX318 EJA MAX318MJA MAX319CPA MAX319CSA MAX319CJA MAX319C/D MAX319EPA MAX319ESA MAX319EJA MAX319MJA TEMP. RANGE 0C to +70C 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C -40C to +85C -55C to +125C 0C to +70C 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C -40C to +85C -55C to +125C PIN-PACKAGE 8 Plastic DIP 8 SO 8 CERDIP Dice* 8 Plastic DIP 8 SO 8 CERDIP 8 CERDIP** 8 Plastic DIP 8 SO 8 CERDIP Dice* 8 Plastic DIP 8 SO 8 CERDIP 8 CERDIP**
______________________Chip Topography
3 2 1
4 9 8 0.076" 1.93mm
5
6
* Contact factory for dice specifications. ** Contact factory for availability and processing to MIL-STD-883.
0.058" 1.47mm
7
TRANSISTOR COUNT: 32; SUBSTRATE CONNECTED TO V+.
DIE PAD 1 2 3 4 5 6 7 8 9 MAX317 COM GND V+ VL IN VN.C. N.C. NC MAX318 NC GND V+ VL IN VNO COM NC MAX319 NC GND V+ VL IN VNO COM COM
10
______________________________________________________________________________________
Precision, CMOS Analog Switches
________________________________________________________Package Information
E D A3 A A2 E1
DIM A A1 A2 A3 B B1 C D1 E E1 e eA eB L INCHES MAX MIN 0.200 - - 0.015 0.175 0.125 0.080 0.055 0.022 0.016 0.065 0.045 0.012 0.008 0.080 0.005 0.325 0.300 0.310 0.240 - 0.100 - 0.300 0.400 - 0.150 0.115 INCHES MIN MAX 0.348 0.390 0.735 0.765 0.745 0.765 0.885 0.915 1.015 1.045 1.14 1.265 MILLIMETERS MIN MAX - 5.08 0.38 - 3.18 4.45 1.40 2.03 0.41 0.56 1.14 1.65 0.20 0.30 0.13 2.03 7.62 8.26 6.10 7.87 2.54 - 7.62 - - 10.16 2.92 3.81 MILLIMETERS MIN MAX 8.84 9.91 18.67 19.43 18.92 19.43 22.48 23.24 25.78 26.54 28.96 32.13
21-0043A
MAX317/MAX318/MAX319
L A1 e B D1
0 - 15 C B1 eA eB
Plastic DIP PLASTIC DUAL-IN-LINE PACKAGE (0.300 in.)
PKG. DIM PINS P P P P P N D D D D D D 8 14 16 18 20 24
DIM
D A e B
0.101mm 0.004in.
0-8
A1
C
L
A A1 B C E e H L
INCHES MAX MIN 0.069 0.053 0.010 0.004 0.019 0.014 0.010 0.007 0.157 0.150 0.050 0.244 0.228 0.050 0.016
MILLIMETERS MIN MAX 1.35 1.75 0.10 0.25 0.35 0.49 0.19 0.25 3.80 4.00 1.27 5.80 6.20 0.40 1.27
E
H
Narrow SO SMALL-OUTLINE PACKAGE (0.150 in.)
DIM PINS D D D 8 14 16
INCHES MILLIMETERS MIN MAX MIN MAX 0.189 0.197 4.80 5.00 0.337 0.344 8.55 8.75 0.386 0.394 9.80 10.00
21-0041A
______________________________________________________________________________________
11
Precision, CMOS Analog Switches MAX317/MAX318/MAX319
________________________________________________________Package Information
DIM
E1 A D E
Q L e B S1 S B1 L1
0-15 C
A B B1 C E E1 e L L1 Q S S1
INCHES MIN MAX - 0.200 0.014 0.023 0.038 0.065 0.008 0.015 0.220 0.310 0.290 0.320 0.100 0.125 0.200 0.150 - 0.015 0.070 - 0.098 0.005 -
MILLIMETERS MIN MAX - 5.08 0.36 0.58 0.97 1.65 0.20 0.38 5.59 7.87 7.37 8.13 2.54 3.18 5.08 3.81 - 0.38 1.78 - 2.49 0.13 -
CERDIP CERAMIC DUAL-IN-LINE PACKAGE (0.300 in.)
DIM PINS D D D D D D 8 14 16 18 20 24
INCHES MILLIMETERS MIN MAX MIN MAX - 0.405 - 10.29 - 0.785 - 19.94 - 0.840 - 21.34 - 0.960 - 24.38 - 1.060 - 26.92 - 1.280 - 32.51
21-0045A
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) 1994 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

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