PI5A317A/318A/319A
Precision Wide Bandwidth Analog Switches
Description
Features
• Single-SupplyOperation(+2Vto+6V)
• Rail-to-RailAnalogSignalDynamicRange
• Low On-Resistance (6Ω typ with 5V supply)
MinimizesDistortionandErrorVoltages
• On-Resistance Matching Channels, 0.8Ω typ
• On-Resistance Flatness, 3Ω typ
• Low Charge Injection Reduces Glitch Errors. Q = 4pC typ
• Replaces Mechanical Relays
ThePI5A317A/381A/319Aareanalogswitchesdesignedforsingle-
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,normallyopen(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 toVCC.
• High Speed. tON= 10ns typ
ThePI5A317A/381A/319Aarefullyspecifiedwith+5Vand+3.3V
supplies. With+5V, theytguarantee<10Ωon-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 (tON < 20ns).
• LowOff-Isolation:-72dB@1MHz
• Wide-3dBBandwidth: 170MHz
• High-CurrentChannelCapability:>100mA
• TTL/CMOSLogicCompatible
• LowPowerConsumption(0.5µWtyp)
• Pin-compatiblewithDG41X,MAX31X
These products are available in a 8-pin narrow body SOIC, and
PDIP packages for operation over the industrial (-40oC to +85oC)
temperature range.
Applications
OrderingInformation
• Audio, Video Switching and Routing
• Battery-PoweredCommunicationSystems
• ComputerPeripherals
• Telecommunications
• Portable Instrumentation
Part Number
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 andTruthTable
1
2
3
4
8
7
6
5
NO
COM
NC
1
2
3
4
8 NC (NO, 318)
COM
NIC
NIC
NIC
IN
7
6
IN
GND
GND
V
PI5A319A
NIC
cc
PI5A317A
V
5 NIC
cc
IN
SW1
ON
SW2
OFF
ON
IN
PI5A317A
ON
PI5A318A
OFF
0
1
0
1
OFF
ON
OFF
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
PS7059B
02/23/98
25