FEATURES

44 V Supply Maximum Ratings

15 V Analog Signal Range

Low On Resistance (<24 )

Ultralow Power Dissipation (3.9 W)

Low Leakage (<0.25 nA)

Fast Switching Times

tON <165 ns

tOFF <130 ns

Break-Before-Make Switching Action

TTL/CMOS Compatible

Plug-in Replacement for DG411/DG412/DG413

APPLICATIONS

Audio and Video Switching

Automatic Test Equipment

Precision Data Acquisition

Battery Powered Systems

Sample Hold Systems

Communication Systems

GENERAL DESCRIPTION

The ADG431, ADG432 and ADG433 are monolithic CMOS devices comprising four independently selectable switches. They are designed on an enhanced LC2MOS process which provides low power dissipation yet gives high switching speed and low on resistance.

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 make the parts suitable for video signal switching. CMOS construction ensures ultralow power dissipation making the parts ideally suited for portable and battery powered instruments.

The ADG431, ADG432 and ADG433 contain four independent SPST switches. The ADG431 and ADG432 differ only in that the digital control logic is inverted. The ADG431 switches are turned on with a logic low on the appropriate control input, while a logic high is required for the ADG432. The ADG433 has two switches with digital control logic similar to that of the ADG431 while the logic is inverted on the other two switches.

Each switch conducts equally well in both directions when ON and has an input signal range which extends to the supplies. In the OFF condition, signal levels up to the supplies are blocked. All switches exhibit break before make switching action for use in multiplexer applications. Inherent in the design is low charge injection for minimum transients when switching the digital inputs.