CMOS 4-/8-Channel

Analog Multiplexers

ADG508A/ADG509A

Rev. D

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FEATURES

44 V supply maximum rating

Single-/dual-supply specifications

Wide supply range: 10.8 V to 16.5 V

Extended plastic temperature range: −40°C to +85°C

Low power dissipation: 28 mW maximum

Low leakage: 20 pA typical

Available in 16-lead DIP/SOIC and 20-lead PLCC/LCC

packages

Superior alternative to

DG508A, HI-508

DG509A, HI-509

FUNCTIONAL BLOCK DIAGRAMS

ADG508A

S1

S8

D

A0 A1 A2 EN

DECODER

Figure 1. ADG508A

ADG509A

S1A

S4A

DA

A0 A1

EN

DECODER

DB

S1B

S4B

Figure 2. ADG509A

GENERAL DESCRIPTION

The ADG508A and ADG509A are CMOS monolithic analog

multiplexers with eight channels and dual four channels, respec-

tively. The ADG508A switches one of eight inputs to a common

output, depending on the state of three binary addresses and an

enable input. The ADG509A switches one of four differential

inputs to a common differential output, depending on the state

of two binary addresses and an enable input. Both devices have

TTL and 5 V CMOS logic-compatible digital inputs.

The ADG508A and ADG509A are designed on an enhanced

The devices can comfortably operate anywhere in the 10.8 V to

16.5 V single- or dual-supply range. These multiplexers also

PRODUCT HIGHLIGHTS

1.

Single-/Dual-Supply Specifications with a Wide Tolerance.

The devices are specified in the 10.8 V to 16.5 V range for

both single and dual supplies.

2.

results in a high breakdown and an increased analog signal

3.

Break-Before-Make Switching. Switches are guaranteed

break-before-make so that input signals are protected

against momentary shorting.

4.

Low Leakage. Leakage currents in the range of 20 pA make

these multiplexers suitable for high precision circuits.