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ADG528A/ADG529A

CMOS Latched

4-/8-Channel Analog Multiplexers

FEATURES

44 V Supply Maximum Rating

Single-/Dual-Supply Specifications

Wide Supply Ranges (10.8 V to 16.5 V)

Microprocessor Compatible (100 ns

WR Pulse)

Extended Plastic Temperature Range

(–40

°C to +85°C)

Low Leakage (20 pA typ)

Low Power Dissipation (28 mW max)

Available in 18-Lead DIP/SOIC and 20-Lead PLCC Packages

Superior Alternative to:

DG528

DG529

FUNCTIONAL BLOCK DIAGRAMS

GENERAL DESCRIPTION

The ADG528A and ADG529A are CMOS monolithic analog

multiplexers with eight channels and four dual channels, respec-

tively. On-chip latches facilitate microprocessor interfacing. The

ADG528A switches one of eight inputs to a common output,

depending on the state of three binary addresses and an enable

input. The ADG529A 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 ADG528A and ADG529A are designed on an enhanced

LC

voltages. The devices can comfortably operate anywhere in the

10.8 V to 16.5 V single- or dual-supply range. These multiplex-

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. Easily Interfaced

The ADG528A and ADG529A can be easily interfaced with

microprocessors. The

WR signal latches the state of the

address control lines and the enable line. The

RS signal

clears both the address and enable data in the latches result-

ing in no output (all switches off).

RS can be tied to the

microprocessor reset pin.

3. Extended Signal Range

The enhanced LC

4. Break-Before-Make Switching

Switches are guaranteed break-before-make so that input

signals are protected against momentary shorting.

5. Low Leakage

Leakage currents in the range of 20 pA make these multiplexers

suitable for high precision circuits.