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 demultiplexer by select pins. The device features ultra-low RON of 1.3  maximum at 4.5 V VCC and operates over the wide VCC 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.

Features
■ Maximum 1.15 Ω On Resistance (RON) at 4.5 V VCC
■ 0.3 Ω Maximum RON Flatness at +5 V VCC
■ Space-Saving MicroPak™
■ Broad VCC 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