FSA2257 Low RON Low Voltage Dual SPDT Bi-Directional Analog Switch
April 2004
Revised December 2004
FSA2257
Low R
ON
Low Voltage Dual SPDT
Bi-Directional Analog Switch
General Description
The FSA2257 is a high performance bi-directional dual Sin-
gle Pole Double Throw (SPDT) analog switch.This switch
can be configured as either a multiplexer or a demultiplexer
by select pins. The device features ultra low R
ON
of 1.3
鈩?/div>
maximum at 4.5V V
CC
and will operate over the wide V
CC
range of 1.65V to 5.5V. The device is fabricated with sub-
micron CMOS technology to achieve fast switching speeds
and is designed for break-before-make operation. The
select input is TTL level compatible.
Features
s
Maximum 1.15
鈩?/div>
ON Resistance (R
ON
) for 4.5V supply
s
0.3
鈩?/div>
max R
ON
flatness for
+
5V supply
s
Space saving MicroPak
錚?/div>
packaging
s
Broad V
CC
operating range: 1.65V to 5.5V
s
Fast turn-on and turn-off time
s
Break-before-make enable circuitry
s
Over-voltage tolerant TTL compatible control input
Ordering Code:
Product
Order
Number
FSA2257L10X
Package
Number
MAC010A
Code
Top Mark
EP
10-Lead MicroPak, 1.6 mm x 2.1mm
5K Units on Tape and Reel
Package Description
Supplied As
Analog Symbols
Truth Table
Control Input(s)
L
H
H
=
HIGH Logic Level
L
=
LOW Logic Level
Function
B
0
Connected to A
B
1
Connected to A
Pin Descriptions
Pin Names
A, B
0
, B
1
S
Function
Data Ports
Control Input
(Top Through View)
MicroPak錚?is a trademark of Fairchild Semiconductor Corporation.
漏 2004 Fairchild Semiconductor Corporation
DS500884
www.fairchildsemi.com
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