CMOS, 1.8 V to 5.5 V/±2.5 V, 3 Ω

Low Voltage 4-/8-Channel Multiplexers

Data Sheet

ADG708/ADG709

FEATURES

1.8 V to 5.5 V single supply

±2.5 V dual supply

3 Ω on resistance

0.75 Ω on resistance flatness

100 pA leakage currents

14 ns switching times

Single 8-to-1 multiplexer ADG708

Differential 4-to-1 multiplexer ADG709

16-lead TSSOP package

Low power consumption

TTL-/CMOS-compatible inputs

Qualified for automotive applications

APPLICATIONS

Data acquisition systems

Communication systems

Relay replacement

Audio and video switching

Battery-powered systems

GENERAL DESCRIPTION

The ADG708/ADG709 are low voltage, CMOS analog

multiplexers comprising eight single channels and four

differential channels, respectively. The ADG708 switches one of

eight inputs (S1 to S8) to a common output, D, as determined

by the 3-bit binary address lines A0, A1, and A2. The ADG709

switches one of four differential inputs to a common differential

output as determined by the 2-bit binary address lines A0 and

A1. An EN input on both devices is used to enable or disable

the device. When disabled, all channels are switched off.

Low power consumption and an operating supply range of

1.8 V to 5.5 V make the ADG708/ADG709 ideal for battery-

powered, portable instruments. All channels exhibit break-

before-make switching action preventing momentary shorting

when switching channels.

These switches are designed on an enhanced submicron process

that provides low power dissipation yet gives high switching

speed, very low on resistance, and leakage currents.

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 parts

can operate equally well as either multiplexers or demultiplexers

and have an input signal range that extends to the supplies.

FUNCTIONAL BLOCK DIAGRAMS

S1

S8

A0

D

A1

A2

ADG708

EN

1 OF 8

DECODER

Figure 1.

S1A

A0

DA

S4A

S1B

S4B

DB

EN

ADG709

1 OF 4

DECODER

A1

Figure 2.

PRODUCT HIGHLIGHTS

1. Single-/dual-supply operation. The ADG708/ADG709 are

fully specified and guaranteed with 3 V and 5 V single-supply

and ±2.5 V dual-supply rails.

3. Low power consumption (<0.01 μW).

4. Guaranteed break-before-make switching action.

5. Small 16-lead TSSOP package.

The ADG708/ADG709 are available in a 16-lead TSSOP.

Rev. E

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