1
PS7059F 0210/03
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 (8-ohm typ with 5V supply)
Minimizes Distortion and Error Voltages
On-Resistance Matching Channels, 0.8-ohm
typ
On-Resistance Flatness, 3-ohm 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 (0.5W typ)
Pin-compatible with DG41X, MAX31X
Applications
Audio, Video Switching and Routing
Battery-Powered Communication Systems
Computer Peripherals
Telecommunications
Portable Instrumentation
Functional Diagram, Pin Configuration and Truth Table
Switches shown for Logic "0" input
NC = Normally Closed, NO = Normally Open, NIC = Not Internally Connected
For free samples and the latest data sheet visit: www.pericom.com, or phone 1 800-435-2336
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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, they guarantee <18-ohm On-Resistance.
On-Resistance matching between channels is within 2-ohm.
On-Resistance flatness is less than 5-ohm 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 package
for operation over the industrial (-40
o
C to +85
o
C) temperature range.
NC (NO, 318)
COM
PI5A317A
PI5A318A
1
NIC
NIC 2
IN
GND 3
NIC
V
4
6
5
7
8
cc
NO
COM 1
NIC
NC 2
IN
GND
PI5A319A
3
NIC
V
4
6
5
7
8
cc
N
I
A
7
1
3
A
5
I
P
A
8
1
3
A
5
I
P
0
N
O
F
F
O
1
F
F
O
N
O
N
I
1
W
S
2
W
S
0
N
O
F
F
O
1
F
F
O
N
O
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PI5A317A/318A/319A
Precison Wide Bandwidth Analog Switches
2
PS7059F 0210/03
Dynamic Electrical Characteristics
(Over the Operating Range, T
A
= 40C to +85C, V
CC
= 5V 10%, GND = 0V)
Single 5.0V Supply
DC Electrical Characteristics
(Over the Operating Range, T
A
= 40C to +85C, V
CC
= 5V 10%, GND = 0V)
Parameters Description
Test Conditions
(1)
Min.
Typ
(2)
Max.
Units
V
ANALOG
Analog Signal Range
(2)
0
--
5
V
R
ON
ON-Resistance
I
NC
or
NO
= 10 mA to 30 mA
--
8
18
R
ON
Match Between Channels
(319A)
--
0.8
2
R
FLAT(ON)
R
ON
Flatness
(4)
I
ON
= 1 mA, V
NO
, V
NC
= 0V to V
CC
--
3
5
I
NO(OFF)
Off Leakage Current
V
NO
, V
NC
= 4.5V
80
--
80
nA
I
NC(ON)
I
COM(ON)
On Leakage Current
V
NO
, V
NC
= 4.5V
30
--
30
nA
I
O
Output Current
V
NO
, V
NC
or V
COM
= 0V to V
CC
100
--
--
mA
V
IH
Input HIGH Voltage
Guaranteed Logic HIGH Level
2.0
--
--
V
V
IL
Input LOW Voltage
Guaranteed Logic LOW Level
0.5
--
0.8
V
I
IH
Input HIGH Current
V
CC
= Max., V
IN
= V
CC
--
--
1
A
I
IL
Input LOW Current
V
CC
= Max., V
IN
= GND
--
--
1
A
I
CC
Quiescent Supply Current
Vcc = 5.5V, Vin = 0V or Vcc
--
--
1
A
Storage Temperature ...................................................................65C to +150C
Ambient Temperature with Power Applied .................................. 40C to +85C
Supply Voltage to Ground Potential ...............................................0.5V to +7.0V
DC Input Voltage ..................................................................... 0.5V to V
CC
+0.5V
DC Output Current ..................................................................................... 120mA
Power Dissipation ..........................................................................................0.5W
Note: Stresses greater than those listed under
MAXIMUM RATINGS may cause permanent dam-
age to the device. This is a stress rating only and
functional operation of the device at these
or any other conditions above those indicated in the
operational sections of this specification is not implied.
Exposure to absolute maximum rating conditions for
extended periods may affect reliability.
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Notes:
1. For Max or Min. conditions, use appropriate value specified under Electrical Characteristics for applicable device type.
2. Guaranteed by design.
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PI5A317A/318A/319A
Precison Wide Bandwidth Analog Switches
3
PS7059F 0210/03
Single 3.3V Supply
DC Electrical Characteristics
(Over the Operating Range, T
A
= 40C to +85C, V
CC
= 3.3V 10%, GND = 0V)
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for applicable device type.
2. Guaranteed by design.
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Dynamic Electrical Characteristics
(Over the Operating Range, T
A
= 40C to +85C, V
CC
= 3.3V 10%, GND = 0V)
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