Low Noise, Micropower 5.0 V Precision Voltage Reference ADR293 FEATURES PIN CONFIGURATIONS 6.0 V to 15 V supply range NC 1 8 NC V 2 ADR293 7 NC Supply current: 15 A maximum IN TOP VIEW NC 3 6 V OUT Low noise: 15 V p-p typical (0.1 Hz to 10 Hz) (Not to Scale) GND 4 5 NC High output current: 5 mA Temperature range: 40C to +125C NC = NO CONNECT Pin-compatible with the REF02/REF19x Figure 1. 8-Lead Narrow Body SOIC (R-8) APPLICATIONS Portable instrumentation 1 NC 8 NC Precision reference for 5 V systems 2 7 V ADR293 NC IN TOP VIEW ADC and DAC reference 3 6 NC V OUT (Not to Scale) Solar-powered applications 4 5 GND NC Loop-current powered instruments NC = NO CONNECT Figure 2. 8-Lead TSSOP (RU-8) GENERAL DESCRIPTION The ADR293 is a low noise, micropower precision voltage 15 ppm/C, and 25 ppm/C maximum. Line regulation and load reference that utilizes an XFET (eXtra implanted junction FET) regulation are typically 30 ppm/V and 30 ppm/mA, respectively, maintaining the references overall high performance. reference circuit. The XFET architecture offers significant performance improvements over traditional band gap and The ADR293 is specified over the extended industrial buried Zener-based references. Improvements include one temperature range of 40C to +125C. This device is available quarter the voltage noise output of band gap references in the 8-lead SOIC and 8-lead TSSOP packages. operating at the same current, very low and ultralinear temperature drift, low thermal hysteresis, and excellent long- Table 1. ADR29x Products term stability. Temperature Output Initial Coefficient The ADR293 is a series voltage reference providing stable and Device Voltage (V) Accuracy (%) (ppm/C max) accurate output voltage from a 6.0 V supply. Quiescent current ADR291 2.500 0.08, 0.12, 0.24 8, 15, 25 is only 15 A maximum, making this device ideal for battery ADR292 4.096 0.07, 0.10, 0.15 8, 15, 25 powered instrumentation. Three electrical grades are available ADR293 5.000 0.06, 0.12, 0.20 8, 15, 25 offering initial output accuracy of 3 mV, 6 mV, and 10 mV. Temperature coefficients for the three grades are 8 ppm/C, 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 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 www.analog.com license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Fax: 781.461.3113 2001-2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 00164-001 00164-002ADR293 TABLE OF CONTENTS Features .............................................................................................. 1 Terminology .......................................................................................9 Applications ....................................................................................... 1 Theory of Operation ...................................................................... 10 Pin Configurations ........................................................................... 1 Device Power Dissipation Considerations .............................. 10 General Description ......................................................................... 1 Basic Voltage Reference Connections ..................................... 10 Revision History ............................................................................... 2 Noise Performance ..................................................................... 10 Specif icat ions ..................................................................................... 3 Turn-On Time ............................................................................ 10 Electrical Specifications ............................................................... 3 Applicat ions ..................................................................................... 11 Absolute Maximum Ratings ............................................................ 5 Kelvin Connections .................................................................... 11 Thermal Resistance ...................................................................... 5 Voltage Regulator for Portable Equipment ............................. 11 ESD Caution .................................................................................. 5 Outline Dimensions ....................................................................... 12 Typical Performance Characteristics ............................................. 6 Ordering Guide .......................................................................... 12 REVISION HISTORY 5/11Rev. C to Rev. D 6/07Rev. A to Rev. B Delete Negative Precision Reference Without Precision Updated Format .................................................................. Universal Resistors Section ............................................................................. 11 Changes to Table 1 ............................................................................. 1 Delete Figure 23 and Figure 24, Renumbered Sequentially ...... 11 Updated Outline Dimensions ....................................................... 13 Changes to Ordering Guide .......................................................... 13 9/10Rev. B to Rev. C Changes to Table 2 and Table 3 ....................................................... 3 3/01Rev. 0 to Rev. A Changes to Table 4 ............................................................................ 4 Changes to Figure 10, Figure 11, Figure 13 ................................... 7 Changes to Captions for Figure 17 to Figure 19 ........................... 8 Rev. D Page 2 of 12