REV. D

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, nor for any infringements of patents or other rights of third parties that

may result from its use. No license is granted by implication or otherwise

under any patent or patent rights of Analog Devices. Trademarks and

registered trademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

www.analog.com

Fax: 781/326-8703

© 2004 Analog Devices, Inc. All rights reserved.

REF43

+2.5 V Low Power Precision

Voltage Reference

FEATURES

PIN CONFIGURATION

GENERAL DESCRIPTION

The REF43 is a low power precision reference providing a

stable 2.5 V output independent of variations in supply voltage,

load conditions or ambient temperature. It is suitable as a

reference level for 8-, 10- and 12-bit data acquisition systems,

or wherever a stable, known voltage is required.

SIMPLIFIED SCHEMATIC

ORDERING GUIDE

Number of

Initial

Temperature

Package

Package

Part per

Temperature

Model

Accuracy

Coefficient

Description

Option

Reel/Tray

Range

REF43FZ

0.06%

10ppm/

∞C

8-Pin Hermetic DIP

Q-8

48

–40

∞C to +85∞C

REF43GZ

0.10%

25ppm/

∞C

8-Pin Hermetic DIP

Q-8

48

–40

∞C to +85∞C

REF43GP

0.10%

25ppm/

∞C

8-Pin Plastic DIP

N-8

50

–40

∞C to +85∞C

REF43GS

0.10%

25ppm/

∞C

8-Pin SOIC

R-8

98

–40

∞C to +85∞C

REF43GS-REEL

0.10%

25ppm/

∞C

8-Pin SOIC

R-8

2,500

–40

∞C to +85∞C

REF43GS-REEL7

0.10%

25ppm/

∞C

8-Pin SOIC

R-8

1,000

–40

∞C to +85∞C

REF43GSZ

*

0.10%

25ppm/

∞C

8-Pin SOIC

R-8

98

–40

∞C to +85∞C

REF43GSZ-REEL7

*

0.10%

25ppm/

∞C

8-Pin SOIC

R-8

1,000

–40

∞C to +85∞C

REF43NBC

0.20%

Die

221

*Z = Pb-free part.

Tight output tolerances and low thermal drift are assured by

zener-zap trimming of both output voltage and its temperature

coefficient. A unique curvature correction circuit reduces the

thermal curvature which is characteristic of many previous

bandgap references.

TEMP

TRIM

GROUND