GENERAL DESCRIPTION

The ADG774 is a monolithic CMOS device comprising four 2:1 multiplexer/demultiplexers with high impedance outputs. The CMOS process provides low power dissipation yet gives high switching speed and low on resistance. The on resistance variation is typically less than 0.5 Ω with an input signal ranging from 0 V to 5 V.

The bandwidth of the ADG774 is greater than 200 MHz; this, coupled with low distortion (typically 0.5), makes the part suitable for switching USB 1.1 data signals and fast Ethernet signals.

The on resistance profile is very flat over the full analog input range ensuring excellent linearity and low distortion when switching audio signals. Fast switching speed, coupled with high signal bandwidth, also makes the parts suitable for video signal switching. CMOS construction ensures ultralow power dissipation, making the parts ideally suited for portable and battery powered instruments.

FEATURES

Low Insertion Loss and On Resistance: 2.2 Ω Typical

On Resistance Flatness 0.5 Ω Typical

Automotive Temperature Range

–40°C to +125°C

–3 dB Bandwidth = 240 MHz

Single 3 V/5 V Supply Operation

Rail-to-Rail Operation

Very Low Distortion: 0.5

Low Quiescent Supply Current (1 nA Typical)

Fast Switching Times

tON 7 ns

tOFF 4 ns

TTL/CMOS Compatible

APPLICATIONS

USB 1.1 Signal Switching Circuits

Cell Phones

PDAs

Battery-Powered Systems

Communications Systems

Data Acquisition Systems

Token Ring 4 Mbps/16 Mbps

Audio and Video Switching

Relay Replacement