Quad SPDT Switch

ADG333A

Rev. A

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FEATURES

44 V supply maximum ratings

Low on resistance (45 Ω max)

Low power dissipation

Fast switching times

Low leakage currents (5 nA max)

Low charge injection (10 pC max)

Break-before-make switching action

APPLICATIONS

Audio and video switching

Battery-powered systems

Test equipment

Communication systems

FUNCTIONAL BLOCK DIAGRAM

S1A

D1

S1B

IN1

IN2

S2B

D2

S2A

S3A

D3

S3B

IN3

IN4

S4B

D2

S4A

ADG333A

SWITCHES SHOWN FOR A LOGIC 1 INPUT

Figure 1.

GENERAL DESCRIPTION

The ADG333A is a monolithic CMOS device comprising four

independently selectable SPDT switches. It is designed on an

achieves a high switching speed and a low on resistance.

The on resistance profile is very flat over the full analog input

range, ensuring good linearity and low distortion when

switching audio signals. High switching speed also makes the

part suitable for video signal switching. CMOS construction

ensures ultralow power dissipation, making the part ideally

suited for portable, battery-powered instruments.

When they are on, each switch conducts equally well in both

directions and has an input signal range that extends to the

power 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 inject

PRODUCT HIGHLIGHTS

1.

Extended signal range.

process, giving an increased signal range which extends to

the supply rails.

2.

Low power dissipation.

3.

4.

Single-supply operation.

For applications where the analog signal is unipolar, the

ADG333A can be operated from a single rail power supply.

The part is fully specified with a single 12 V supply.