1

File Number

3586.5

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

http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999

DG444, DG445

Monolithic, Quad SPST, CMOS Analog

Switches

The DG444 and DG445 monolithic CMOS analog switches

are drop-in replacements for the popular DG211 and DG212

series devices. They include four independent single pole

single throw (SPST) analog switches and TTL and CMOS

compatible digital inputs.

These switches feature lower analog ON resistance (<85

Ω)

and DG212. Charge injection has been reduced, simplifying

sample and hold applications.

The improvements in the DG444 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

controlling

±20V signals when operating with ±20V power

supplies.

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 DG444 and DG445 are identical,

differing only in the polarity of the selection logic.

Pinout

DG444, DG445 (PDIP, SOIC)

TOP VIEW

Features

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

Ω

• Fast Switching Action

• Low Charge Injection

• Upgrade from DG211/DG212

• TTL, CMOS Compatible

• Single or Split Supply Operation

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+

Ordering Information

PART NUMBER

TEMP.

PACKAGE

PKG. NO.

DG444DJ

-40 to 85

16 Ld PDIP

E16.3

DG444DY

-40 to 85

16 Ld SOIC

M16.15

DG445DJ

-40 to 85

16 Ld PDIP

E16.3

DG445DY

-40 to 85

16 Ld SOIC

M16.15

Data Sheet

June 1999