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REV. D

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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

OUT

TRIM

GROUND

Summary of content (12 pages)

PAGE 1
+2.5 V Low Power Precision Voltage Reference REF43 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.
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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.
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REV.
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REF43 DICE CHARACTERISTICS 2. 3. 4A. 4B. 5. 6A. 6B. VIN TEMPERATURE OUT GROUND* GROUND* TRIM VOUT FO2. VIN VOUT SENSE‡ *PADS 4A AND 4B MUST BOTH BE BONDED TO GROUND. ‡VOUT FORCE AND SENSE ARE TYPICALLY BONDED TOGETHER AT THE LOAD. DIE SIZE 0.085 ⴛ 0.062 inch, 5270 sq. mils (2.16 ⴛ 1.57 mm, 3.39 sq. mm) –4– REV.
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Typical Performance Characteristics– REF43 REV.
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REF43 –6– REV.
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REF43 REV.
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REF43 *OP AMP IS OP43 IF HIGHER SPEED AND FASTER SETTING IS REQUIRED. OP97 IF LOWER SPEED AND HIGHER LINEARITY IS REQUIRED. –8– REV.
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REF43 REV.
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REF43 –10– REV.
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REF43 REV.
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REF43 OUTLINE DIMENSIONS 8-Lead Standard Small Outline Package [SOIC] (R-8) S-Suffix Dimensions shown in inches and (millimeters) Dimensions shown in millimeters and (inches) 0.005 (0.13) MIN 5.00 (0.1968) 4.80 (0.1890) 0.055 (1.40) MAX 8 5 4.00 (0.1574) 3.80 (0.1497) 0.310 (7.87) 0.220 (5.59) PIN 1 1 8 5 1 4 6.20 (0.2440) 5.80 (0.2284) 4 0.100 (2.54) BSC 0.060 (1.52) 0.015 (0.38) 0.200 (5.08) MAX 1.27 (0.0500) BSC 0.320 (8.13) 0.290 (7.37) 0.405 (10.29) MAX 0.25 (0.0098) 0.10 (0.