FSA4157_07 Datasheet, PDF (1/12 Pages) Fairchild Semiconductor – Low-Voltage, 1Ω SPDT Analog Switch

October 2007
FSA4157, FSA4157A
Low-Voltage, 1Ω SPDT Analog Switch
Features
ƒ FSA4157A Features Lower ICC when the S Input is
Lower Than VCC
ƒ Maximum 1.15Ω On Resistance (RON) at 4.5V VCC
ƒ 0.3Ω max RON Flatness at 4.5V VCC
ƒ Space-Saving 6-lead, MicroPak™ and
SC70 6 Packages
ƒ Broad VCC Operating Range:
– FSA4157: 1.65V to 5.5V
– FSA4157A: 2.7V to 5.5V
ƒ Fast Turn-On and Turn-Off Time
ƒ Break-Before-Make Enable Circuitry
ƒ 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 RON of 1.15Ω maximum at
4.5V VCC and will operate over the wide VCC range of
1.65V to 5.5V for FSA4157, and 2.7V to 5.5V 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 VCC
supply. This feature services the mobile handset
applications very well allowing for the direct interface
with baseband processor general purpose I/Os.
Technology Description
The Fairchild Switch family derives from and embodies
Fairchild’s proven switch technology used for several
years in its 74LVXL384 (FST3384) bus switch product.
Ordering Information
Part Number Top Mark
Package Description
FSA4157P6
A57
6-Lead SC70, EIAJ SC88, 1.25mm Wide
FSA4157P6X
A57
6-Lead SC70, EIAJ SC88, 1.25mm Wide
FSA4157L6X
EG
6-Lead MicroPak, 1.0mm Wide
FSA4157AP6
B57
6-Lead SC70, EIAJ SC88, 1.25mm Wide
FSA4157AP6X
B57
6-Lead SC70, EIAJ SC88, 1.25mm Wide
FSA4157AL6X
EU
6-Lead MicroPak, 1.0mm Wide
Note:
1. All packages are lead-free per JEDEC J-STD-020B.
Packing Method
250 Units on Tape and Reel
3000 Units on Tape and Reel
5000 Units on Tape and Reel
250 Units on Tape and Reel
3000 Units on Tape and Reel
5000 Units on Tape and Reel
© 2006 Fairchild Semiconductor Corporation
FSA5147,FSA4157A Rev. 1.0.2
www.fairchildsemi.com