+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. 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. ORDERING GUIDE Model Initial Accuracy Temperature Coefficient Package Description Package Option REF43FZ REF43GZ REF43GP REF43GS REF43GS-REEL REF43GS-REEL7 REF43GSZ* REF43GSZ-REEL7* REF43NBC 0.06% 0.10% 0.10% 0.10% 0.10% 0.10% 0.10% 0.10% 0.20% 10ppm/∞C 25ppm/∞C 25ppm/∞C 25ppm/∞C 25ppm/∞C 25ppm/∞C 25ppm/∞C 25ppm/∞C 8-Pin Hermetic DIP 8-Pin Hermetic DIP 8-Pin Plastic DIP 8-Pin SOIC 8-Pin SOIC 8-Pin SOIC 8-Pin SOIC 8-Pin SOIC Die Q-8 Q-8 N-8 R-8 R-8 R-8 R-8 R-8 Number of Part per Reel/Tray 48 48 50 98 2,500 1,000 98 1,000 221 Temperature Range –40∞C to +85∞C –40∞C to +85∞C –40∞C to +85∞C –40∞C to +85∞C –40∞C to +85∞C –40∞C to +85∞C –40∞C to +85∞C –40∞C to +85∞C *Z = Pb-free part. SIMPLIFIED SCHEMATIC VIN VOUT TRIM TEMP 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. GROUND 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 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 REV. D –3– 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. D Typical Performance Characteristics– REF43 REV. D –5– REF43 –6– REV. D REF43 REV. D –7– REF43 *OP AMP IS OP43 IF HIGHER SPEED AND FASTER SETTING IS REQUIRED. OP97 IF LOWER SPEED AND HIGHER LINEARITY IS REQUIRED. –8– REV. D REF43 REV. D –9– REF43 –10– REV. D REF43 REV. D –11– 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 (0.0040) 0.150 (3.81) MIN 0.200 (5.08) 0.125 (3.18) 0.023 (0.58) 0.014 (0.36) C00374–0–8/04(D) 8-Lead Ceramic Dual In-Line Package [CERDIP] (Q-8) Z-Suffix SEATING 0.070 (1.78) PLANE 0.030 (0.76) COPLANARITY SEATING 0.10 PLANE 0.015 (0.38) 0.008 (0.20) 15 0 1.75 (0.0688) 1.35 (0.0532) 0.51 (0.0201) 0.31 (0.0122) 0.50 (0.0196) ⴛ 45ⴗ 0.25 (0.0099) 8ⴗ 0.25 (0.0098) 0ⴗ 1.27 (0.0500) 0.40 (0.0157) 0.17 (0.0067) COMPLIANT TO JEDEC STANDARDS MS-012AA CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETER DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN 8-Lead Plastic Dual In-Line Package [PDIP] (N-8) P-Suffix Dimensions shown in inches and (millimeters) 0.375 (9.53) 0.365 (9.27) 0.355 (9.02) 8 5 1 4 0.295 (7.49) 0.285 (7.24) 0.275 (6.98) 0.325 (8.26) 0.310 (7.87) 0.300 (7.62) 0.100 (2.54) BSC 0.180 (4.57) MAX 0.150 (3.81) 0.130 (3.30) 0.110 (2.79) 0.022 (0.56) 0.018 (0.46) 0.014 (0.36) 0.015 (0.38) MIN SEATING PLANE 0.060 (1.52) 0.050 (1.27) 0.045 (1.14) 0.150 (3.81) 0.135 (3.43) 0.120 (3.05) 0.015 (0.38) 0.010 (0.25) 0.008 (0.20) COMPLIANT TO JEDEC STANDARDS MO-095AA CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETER DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN Revision History Location Page 8/04—Data Sheet Changed from REV. C to REV. D. Edits to FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Changes to PIN CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Changes to ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Changes to ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Changes to PACKAGE TYPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Changes to ELECTRICAL CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Delected PACKAGE TYPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 –12– REV. D