16-/32-Channel, 4 Ω, +1.8 V to +5.5 V and

±2.5 V Analog Multiplexers

Data Sheet

ADG726/ADG732

Rev. C

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FEATURES

1.8 V to 5.5 V single-supply operation

±2.5 V dual-supply operation

On resistance: 4 Ω at 25°C (+5 V single supply/±2.5 V dual

supply)

0.5 Ω on-resistance flatness at 25°C (+5 V single supply/

±2.5 V dual supply)

Rail-to-rail operation

Transition times: 23 ns typical at 25°C

Single 32-to-1 channel multiplexer

Dual/differential 16-to-1 channel multiplexer

TTL-/CMOS-compatible inputs

48-lead TQFP or 48-lead, 7 mm × 7 mm LFCSP

APPLICATIONS

Optical applications

Data acquisition systems

Communication systems

Relay replacement

Audio and video switching

Battery-powered systems

Medical instrumentation

Automatic test equipment (ATE)

FUNCTIONAL BLOCK DIAGRAMS

S1A

S16A

DA

ADG726

EN

WR

A3

A2

A1

A0

S1B

S16B

DB

1-OF-16

DECODER

CSA

CSB

Figure 1.

ADG732

EN

S1

S32

WR

CS

A4

A3

A2

A1

A0

D

1-OF-32

DECODER

EN

Figure 2.

GENERAL DESCRIPTION

The ADG726/ADG732 are monolithic, complementary metal

oxide semiconductor (CMOS) 32-channel and dual 16-channel

analog multiplexers. The ADG732 switches one of 32 inputs (S1 to

S32) to a common output, D, as determined by the 5-bit binary

address lines A0, A1, A2, A3, and A4. The ADG726 switches one

of 16 inputs as determined by the 4-bit binary address lines A0, A1,

A2, and A3.

On-chip latches facilitate microprocessor interfacing. The ADG726

may also be configured for differential operation by tying CSA

and CSB together. An EN input is used to enable or disable the

devices. When disabled, all channels are switched off.

These multiplexers are designed on an enhanced submicron

process that provides low power dissipation yet gives high

switching speed, very low on resistance, and leakage currents.

They operate from a single supply of +1.8 V to +5.5 V and a

±2.5 V dual supply, making them ideally suited to a variety of

applications. On resistance is in the region of a few ohms and is

closely matched between switches and very flat over the full signal

range. These devices can operate equally well as either multiplexers

or demultiplexers and have an input signal range that extends

to the supplies. In the off condition, signal levels up to the

supplies are blocked. All channels exhibit break-before-make

switching action, preventing momentary shorting when switching

channels.

The ADG726/ADG732 are available in a 48-lead LFCSP or a 48-

lead TQFP. For functionally equivalent devices with serial

interface, see the ADG725/ADG731.

PRODUCT HIGHLIGHTS

1.

+1.8 V to +5.5 V single- or ±2.5 V dual-supply operation.

These devices are specified and guaranteed with +5 V ± 10%,

+3 V ± 10% single-supply, and ±2.5 V ± 10% dual-supply

rails.

2.

An on resistance of 4 Ω.

3.

Guaranteed break-before-make switching action.

4.

48-lead LFCSP package or 48-lead TQFP package.