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FSA4157, FSA4157A — Low-Voltage, 1
SPDT Analog Switch
March 2014
FSA4157, FSA4157A
Low-Voltage, 1
SPDT Analog Switch
Features
FSA4157A Features Lower I
CC
when the S Input is
Lower Than V
CC
Maximum 1.15
On Resistance (R
ON
) at 4.5 V V
CC
0.3
Maximum R
ON
Flatness at 4.5 V V
CC
Space-Saving 6-lead, MicroPak™ and
SC70 6 Packages
Broad V
CC
Operating Range:
– FSA4157: 1.65 V to 5.5 V
– FSA4157A: 2.7 V to 5.5 V
Fast Turn-On and Turn-Off Time
Break-Before-Make Enable Circuitry
Over-Voltage Tolerant TTL-Compatible Control
Circuitry
Description
FSA4157 and FSA4157A are high performance Single
Pole/Double Throw (SPDT) analog switches. Both
devices feature ultra low R
ON
of 1.15
maximum at
4.5 V V
CC
and operates over the wide V
CC
range of
1.65 V to 5.5 V for FSA4157, and 2.7 V to 5.5 V for
FSA4157A. 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.
The FSA4157A features very low quiescent current even
when the control voltage is lower than the V
CC
supply.
This feature services the mobile handset applications
very well allowing for the direct interface with baseband
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