Vishay Siliconix

DG2537, DG2538, DG2539

Document Number: 63370

S11-1551-Rev. A, 01-Aug-11

www.vishay.com

1

This document is subject to change without notice.

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 Dual SPST Switches

DESCRIPTION

The DG2537, DG2538, and DG2539 are low voltage,

precision dual SPST switches that can be operated in a

single supply or in a dual supply configuration power supply

with low power dissipation. The DG2537, DG2538 and

DG2539 can switch both analog and digital signals within the

power supply rail, and conduct well in both directions.

Fabricated with advance submicron CMOS process, these

switches provide high precision low and flat ON resistance,

low leakage current, low parasitic capacitance, and low

charge injection.

The

DG2537,

DG2538

and

DG2539

contain

two

independent Single Pole Single Throw (SPST) switches.

Switch-1 and switch-2 are normally open for the DG2537 and

normally closed for the DG2538. For the DG2539, switch-1 is

normally open and switch-2 is normally closed with a

Break-Before-Make switching timing.

The DG2537, DG2538 and DG2539 are the ideal switches

for use in low voltage instruments and healthcare devices,

fitting the circuits of low voltage ADC and DAC, analog front

end gain control, and signal path control.

As a committed partner to the community and the

environment, Vishay Siliconix manufactures this product with

lead (Pb)-free device termination.

As a further sign of Vishay Siliconix's commitment, the

DG2537, DG2538 and D2539 are fully RoHS compliant and

halogen-free.

FEATURES

•

Halogen-free According to IEC 61249-2-21

Definition

•

Low and flat switch on resistance, 2.5

/typ

•

Low leakage and parasitic capacitance

•

366 MHz, - 3 dB bandwidth

•

Latch-up current > 300 mA (JESD78)

•

Over voltage tolerant TTL/CMOS compatible

•

Compliant to RoHS Directive 2002/95/EC

APPLICATIONS

•

Healthcare and medical devices

•

Test instruments

•

Portable meters

•

Data acquisitions

•

Control and automation

•

PDAs and modems

•

Communication systems

•

Audio, video systems

•

Mechanical reed relay replacement

FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION

DG2537, MSOP-10

Top View

NO

1

COM

1

IN

2

GND

1

2

3

4

V+

5

10

9

8

7

6

NO

2

COM

2

IN

1

V-

DG2538, MSOP-10

Top View

9

8

7

6

10

1

2

3

4

5

NC

1

COM

1

IN

2

GND

V+

NC

2

COM

2

IN

1

V-

DG2539, MSOP-10

Top View

NO

1

COM

1

IN

2

GND

1

2

3

4

V+

5

10

9

8

7

6

NC

2

COM

2

IN

1

V-

TRUTH TABLE (DG2537, DG2538)

Logic

DG2537

DG2538

Switches

01

Off

10

On

TRUTH TABLE (DG2539)

Logic

Switch-1

Switch-2

0Off

On

1On

Off

ORDERING INFORMATION

Temperature Range

Package

Part Number

- 40 °C to 85 °C

MSOP-10

DG2537DQ-T1-GE3

MSOP-10

DG2538DQ-T1-GE3

MSOP-10

DG2539DQ-T1-GE3