Datasheet

May 2013
© 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSA2257 • Rev. 1.0.6
FSA2257— Low R
ON
, Low-Voltage Dual SPDT Bi-Directional Analog Switch
FSA2257
Low R
ON
, Low-Voltage Dual SPDT Bi-Directional
Analog Switch
Features
 Maximum 1.15  On Resistance (R
ON
) at 4.5 V V
CC
 0.3  Maximum R
ON
Flatness at +5 V V
CC
 Space-Saving MicroPak™
 Broad V
CC
Operating Range: 1.65 V to 5.50 V
 Fast Turn-On and Turn-Off Time
 Break-Before-Make Enable Circuitry
 Over-Voltage Tolerant TTL-Compatible Control
Input
Applications
 Cell Phone
 PDA
 Mobile Devices
Description
The FSA2257 is a high-performance bi-directional dual
Single-Pole/Double-Throw (SPDT) analog switch. This
switch can be configured as either a multiplexer or a de-
multiplexer by select pins. The device features ultra-low
R
ON
of 1.3  maximum at 4.5 V V
CC
and operates over
the wide V
CC
range of 1.65 V to 5.50 V. The device is
fabricated with submicron CMOS technology to achieve
fast switching speeds and is designed for break-before-
make operation. The select input is TTL-level compatible.
Ordering Information
Part Number
Package
Number
Top
Mark
Package Description
Packing Method
FSA2257L10X
MAC10A
EP
10-Lead MicroPak™, 1.6 x 2.1 mm
5000 Units Tape and Reel
FSA2257MTCX
MCT14
FSA2257
14-Lead Thin Shrink Small Outline Package
(TSSOP), JEDEC MO-153, 4.4 mm Wide
2500 Units Tape and Reel
FSA2257MUX
MUA10A
FSA
2257
10-Lead Molded Small Outline Package
(MSOP), JEDEC MO-187, 3.0 mm
4000 Units Tape and Reel
Figure 1. Block Diagram