+2.5 V Low Power Precision Voltage Reference REF43 FEATURES PIN CONFIGURATION GENERAL DESCRIPTION Tight output tolerances and low thermal drift are assured by The REF43 is a low power precision reference providing a zener-zap trimming of both output voltage and its temperature stable 2.5 V output independent of variations in supply voltage, coefficient. A unique curvature correction circuit reduces the load conditions or ambient temperature. It is suitable as a thermal curvature which is characteristic of many previous reference level for 8-, 10- and 12-bit data acquisition systems, bandgap references. or wherever a stable, known voltage is required. 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 +85C REF43GZ 0.10% 25ppm/ C 8-Pin Hermetic DIP Q-8 48 40 C to +85C REF43GP 0.10% 25ppm/ C 8-Pin Plastic DIP N-8 50 40 C to +85C REF43GS 0.10% 25ppm/ C 8-Pin SOIC R-8 98 40 C to +85C REF43GS-REEL 0.10% 25ppm/ C 8-Pin SOIC R-8 2,500 40 C to +85C REF43GS-REEL7 0.10% 25ppm/ C 8-Pin SOIC R-8 1,000 40 C to +85C REF43GSZ* 0.10% 25ppm/ C 8-Pin SOIC R-8 98 40 C to +85C REF43GSZ-REEL7* 0.10% 25ppm/ C 8-Pin SOIC R-8 1,000 40 C to +85C REF43NBC 0.20% Die 221 *Z = Pb-free part. SIMPLIFIED SCHEMATIC V IN V OUT TRIM TEMP GROUND 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. may result from its use. No license is granted by implication or otherwise Tel: 781/329-4700 www.analog.com under any patent or patent rights of Analog Devices. Trademarks and Fax: 781/326-8703 2004 Analog Devices, Inc. All rights reserved. registered trademarks are the property of their respective owners.REF43 CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the REF43 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. 2 REV. D