1.2 V Precision Low Noise Shunt Voltage Reference Data Sheet ADR512 FEATURES PIN CONFIGURATION Precision 1.200 V Voltage Reference ADR512 V+ 1 Ultracompact 3 mm 3 mm SOT-23 Package 3 TRIM/NC No External Capacitor Required Low Output Noise: 4 V p-p (0.1 Hz to 10 Hz) V 2 TOP VIEW (Not to Scale) Initial Accuracy: 0.3% Max Temperature Coefficient: 60 ppm/C Max NC = NO CONNECT. DO NOT CONNECT TO THIS PIN. Operating Current Range: 100 A to 10 mA Figure 1. 3-Lead SOT-23 Output Impedance: 0.3 Max Temperature Range: 40C to +85C Table 1. Initial Temperature APPLICATIONS Accuracy Output Coefficient Precision Data Acquisition Systems Model Voltage (V ) (mV) (%) (ppm/C) O Battery-Powered Equipment: ADR512ARTZ-REEL7 1.200 3.5 0.3 60 Cellular Phone, Notebook Computer, PDA, and GPS 3 V/5 V, 8-/12-Bit Data Converters Portable Medical Instruments Industrial Process Control Systems Precision Instruments GENERAL DESCRIPTION Designed for space critical applications, the ADR512 is a low maximum of 10 mA. This low operating current and ease of use voltage (1.200 V), precision shunt-mode voltage reference in the make the ADR512 ideally suited for handheld battery-powered ultracompact (3 mm 3 mm) SOT-23 package. The ADR512 applications. features low temperature drift (60 ppm/C), high accuracy A TRIM terminal is available on the ADR512 to provide (0.30%), and ultralow noise (4 V p-p) performance. adjustment of the output voltage over 0.5% without affecting The ADR512s advanced design eliminates the need for an the temperature coefficient of the device. This feature provides external capacitor, yet it is stable with any capacitive load. The users with the flexibility to trim out any system errors. minimum operating current increases from a scant 100 A to a V S I + I R L Q BIAS I L V = 1.2V OUT C OUT I ADR512 Q (OPTIONAL) V V S OUT R = BIAS I + I L Q Figure 2. Typical Operating Circuit Rev. A Document Feedback 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 20032012 Analog Devices, Inc. All rights reserved. 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. Technical Support www.analog.com 03700-002 03700-001ADR512 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Parameter Definitions .......................................................................7 Applications ....................................................................................... 1 Temperature Coefficient...............................................................7 Pin Configuration ............................................................................. 1 Thermal Hysteresis .......................................................................7 General Description ......................................................................... 1 Applications Section..........................................................................8 Revision History ............................................................................... 2 Adjustable Precision Voltage Source ..........................................8 Specifications ..................................................................................... 3 Output Voltage Trim .....................................................................8 Electrical Characteristics ............................................................. 3 Using the ADR512 with Precision Data Converters ................8 Absolute Maximum Ratings ............................................................ 4 Precise Negative Voltage Reference ............................................9 Thermal Resistance .......................................................................... 4 Outline Dimensions ....................................................................... 10 ESD Caution .................................................................................. 4 Ordering Guide .......................................................................... 10 Typical Performance Characteristics ............................................. 5 REVISION HISTORY 11/12Rev. 0 to Rev. A Changes to Table 1 ............................................................................. 1 Updated Outline Dimensions ........................................................ 10 Changes to Ordering Guide ........................................................... 10 Rev. A Page 2 of 12