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 demultiplexer by select pins. The device features ultra low R
ON of 1.3ohm 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.