±5 V,+12 V, +5 V, and +3.3 V Multiplexers

ADG1608/ADG1609

Rev. 0

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FEATURES

4.5 Ω typical on resistance

1 Ω on-resistance flatness

Up to 470 mA continuous current

±3.3 V to ±8 V dual-supply operation

3.3 V to 16 V single-supply operation

3 V logic-compatible inputs

Rail-to-rail operation

16-lead TSSOP and 16-lead, 3 mm × 3 mm LFCSP

APPLICATIONS

Communication systems

Medical systems

Audio signal routing

Video signal routing

Automatic test equipment

Data acquisition systems

Battery-powered systems

Sample-and-hold systems

Relay replacements

FUNCTIONAL BLOCK DIAGRAMS

ADG1608

1-OF-8

DECODER

A0 A1 A2 EN

S1

S8

D

Figure 1.

ADG1609

1-OF-4

DECODER

A0

A1

EN

S1A

DA

DB

S4A

S1B

S4B

Figure 2.

GENERAL DESCRIPTION

The ADG1608/ADG1609 are monolithic CMOS analog multip-

lexers comprising eight single channels and four differential

channels, respectively. The ADG1608 switches one of eight

inputs to a common output, as determined by the 3-bit binary

address lines, A0, A1, and A2. The ADG1609 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.

Each switch conducts equally well in both directions when on

and has an input signal range that extends to the supplies. In the

off condition, signal levels up to the supplies are blocked. All

switches exhibit break-before-make switching action. Inherent

in the design is low charge injection for minimum transients

when switching the digital inputs.

The low on resistance of these switches make them ideal solu-

tions for data acquisition and gain switching applications where

low on resistance and distortion is critical. The on-resistance

profile is very flat over the full analog input range, ensuring

excellent linearity and low distortion when switching audio

signals.

CMOS construction ensures ultralow power dissipation,

making the parts ideally suited for portable and battery-

powered instruments.

PRODUCT HIGHLIGHTS

1.

8 Ω maximum on resistance over temperature.

2.

Minimum distortion: THD + N = 0.04%

3.

4.

5.

Ultralow power dissipation: <8 nW.

6.

16-lead TSSOP and 16-lead, 3 mm × 3 mm LFCSP.