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 single-
throw (SPST) MAX317 is normally closed (NC), the
SPST MAX318 is normally open (NO), and the single-
pole double-throw (SPDT) MAX319 has one normally
open and one normally closed switch. All three parts
offer low on resistance (less than 35Ω), guaranteed to
match within 2Ω between channels and to remain flat
over the analog signal range (∆3Ω max). They also
offer low leakage (less than 250pA at +25°C and less
than 6nA at +85°C) 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 injec-
tion (10pC), low power consumption (35µW), and elec-
trostatic discharge (ESD) greater than ±2000V. The
44V maximum breakdown voltage allows rail-to-rail ana-
log signal handling capability.
____________________________Features
o
Low On Resistance <20Ω Typical (35Ω Max)
o
Guaranteed Matched On Resistance Between
Channels <2Ω
o
Guaranteed Flat On Resistance over Analog
Signal Range
∆3Ω
Max
o
Guaranteed Charge Injection <10pC
o
Guaranteed Off-Channel Leakage <6nA at +85°C
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
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
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
V-
IN
VL
COM
N.C.
1
2
8
7
6
NO
V-
IN
VL
COM
NC
1
2
8
7
6
NO
V-
IN
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
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