1

®

FN3281.10

DG441, DG442

Monolithic, Quad SPST, CMOS Analog

Switches

The DG441 and DG442 monolithic CMOS analog switches

are drop-in replacements for the popular DG201A and

DG202 series devices. They include four independent single

pole single throw (SPST) analog switches, TTL and CMOS

compatible digital inputs, and a voltage reference for logic

thresholds.

These switches feature lower analog ON resistance (<85

Ω)

DG201A and DG202. Charge injection has been reduced,

simplifying sample and hold applications.

The improvements in the DG441 series are made possible

by using a high voltage silicon-gate process. An epitaxial

layer prevents the latch-up associated with older CMOS

technologies. The 44V maximum voltage range permits

ended from +5V to +34V, symmetrical supplies from ±5V to

±22V or asymmetrical supplies limited to a maximum

differential voltage of 44V with a V+ max of 34V or a V- max

of -25V.

The four switches are bilateral, equally matched for AC or

bidirectional signals. The ON resistance variation with

analog signals is quite low over a

±5V analog input range.

The switches in the DG441 and DG442 are identical,

differing only in the polarity of the selection logic.

Pinout

DG441, DG442

(16 LD PDIP, SOIC, TSSOP)

TOP VIEW

Features

• ON Resistance (Max) . . . . . . . . . . . . . . . . . . . . . . . . . 85

Ω

• Fast Switching Action

• Low Charge Injection

• Upgrade from DG201A, DG202

• TTL, CMOS Compatible

• Single or Split Supply Operation

• Pb-Free Plus Anneal Available (RoHS Compliant)

Applications

• Audio Switching

• Battery Operated Systems

• Data Acquisition

• Hi-Rel Systems

• Sample and Hold Circuits

• Communication Systems

• Automatic Test Equipment

14

15

16

9

13

12

11

10

1

2

3

4

5

7

6

8

V-

GND

V+

NC

Data Sheet

November 20, 2006

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

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