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PI5A317A/318A/319A
Precision Wide Bandwidth Analog Switches
Features
•
Single-Supply Operation (+2V to +6V)
•
Rail-to-Rail Analog Signal Dynamic Range
•
Low On-Resistance (6Ω typ with 5V supply)
•
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•
•
•
•
•
•
•
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•
Minimizes Distortion and Error Voltages
On-Resistance Matching Channels, 0.8Ω typ
On-Resistance Flatness, 3Ω typ
Low Charge Injection Reduces Glitch Errors. Q = 4pC typ
Replaces Mechanical Relays
High Speed. t
ON
= 10ns typ
Low Off-Isolation: -72dB@1MHz
Wide -3dB Bandwidth: 170 MHz
High-Current Channel Capability: >100mA
TTL/CMOS Logic Compatible
Low Power Consumption (0.5µW typ)
Pin-compatible with DG41X, MAX31X
Description
The PI5A317A/381A/319A are analog switches designed for single-
supply operation. These high-precision device is ideal for low-
distortion audio, video, signal switching and routing.
The PI5A317A is a single-pole single-throw (SPST), normally
closed (NC) switch. The PI5A318A has the same pinout but is a
single-pole, single-throw (SPST, normally open (NO) function. The
PI5A319A is a single-pole, double-throw (SPDT) switch
Each switch conducts current equally well in either direction when
on. When off, they block voltages up toV
CC
.
The PI5A317A/381A/319A are fully specified with +5V and +3.3V
supplies. With +5V, theyt guarantee <10Ω on-resistance. On-resis-
tance matching between channels is within 2Ω. On-resistance
flatness is less than 5Ω over the specified range. This switch family
also guarantees fast switching speeds (t
ON
< 20ns).
These products are available in a 8-pin narrow body SOIC, and
PDIP packages for operation over the industrial (-40
o
C to +85
o
C)
temperature range.
Applications
•
Audio, Video Switching and Routing
•
Battery-Powered Communication Systems
•
Computer Peripherals
•
Telecommunications
•
Portable Instrumentation
Ordering Information
Part Numbe r
PI5A317AP
PI5A317AW
PI5A318AP
PI5A318AW
PI5A319AP
PI5A319AW
Package
8- Pin PDIP
Narrow Body SOIC- 8
8- Pin PDIP
Narrow Body SOIC- 8
8- Pin PDIP
Narrow Body SOIC- 8
Functional Diagram, Pin Configuration and Truth Table
COM 1
NIC 2
GND 3
Vcc 4 PI5A317A
IN
0
1
PI5A317A
ON
O FF
8 NC (NO, 318)
7 NIC
6 IN
5 NIC
PI5A318A
O FF
ON
COM 1
NC 2
GND 3
Vcc 4
8 NO
7 NIC
6 IN
PI5A319A 5 NIC
IN
0
1
SW1
ON
O FF
SW2
O FF
ON
Switches shown for Logic 0 input
NC = Normally Open, NO = Normally Closed, NIC = Not Internally Connected
For free samples and the latest data sheet visit: www.pericom.com, or phone 1 800-435-2336
25
PS7059B
02/23/98
PERICOM [ PERICOM SEMICONDUCTOR CORPORATION ]
