Vishay Siliconix

DG2018, DG2019

Document Number: 72342

S-82626-Rev. C, 03-Nov-08

www.vishay.com

1

Low Voltage, Dual DPDT and Quad SPDT Analog Switches

FEATURES

•

Low voltage operation (1.8 V to 5.5 V)

•

Low on resistance

•

Low voltage logic compatible

•

High bandwidth: 180 MHz

BENEFITS

•

Ideal for both analog and digital signal switching

•

Reduced power consumption

•

High accuracy

•

Reduced PCB space

•

Fast switching

•

Low leakage

APPLICATIONS

•

Cellular phones

•

Audio and video signal routing

•

PCMCIA cards

•

Battery operated systems

•

Portable instrumentation

DESCRIPTION

The DG2018 and DG2019 are low voltage, single supply

analog switches. The DG2018 is a dual double-pole/double-

throw (DPDT) with two control inputs that each controls a

pair of single-pole/double-throw (SPDT). The DG2019 uses

one control pin to operate four independent SPDT switches.

When operated on a + 3 V supply, the DG2018’s control pins

are compatible with 1.8 V digital logic. The DG2019 has an

Built on Vishay Siliconix’s low voltage submicron CMOS

process, the DG2018 and DG2019 are ideal for high

performance switching of analog signals; providing low on-

resistance (6

Ω at + 2.7 V), fast speed (T

16 ns), and a bandwidth that exceeds 180 MHz.

The DG2018 and DG2019 were designed to offer solutions

that extend beyond audio/video functions, to providing the

performance required for today’s demanding mixed-signal

switching in portable applications.

An epitaxial layer prevents latch-up. Brake-before-make is

guaranteed for all SPDT’s. All switches conduct equally well

in both directions when on, and blocks up to the power

supply level when off.

FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION

IN1, IN2

NO4

COM2

NO2

NC3

IN3, IN4

NC1

COM4

1

2

3

12

11

10

49

56

8

16

15

14

13

NC2

GND

NO3 COM3

COM1 NO1

V+

NC4

Top View

DG2018DN

QFN-16 (3 X 3)

7

TRUTH TABLE

IN1, IN2

Logic

NC1 and NC2

NO1 and NO2

0ON

OFF

1OFF

ON

IN3, IN4

Logic

NC3 and NC4

NO3 and NO4

0ON

OFF

1OFF

ON

ORDERING INFORMATION

Temp. Range

Package

Part Number

- 40 °C to 85 °C

QFN-16 (3 x 3 mm)

DG2018DN