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ADR370 Dataheets PDF



Part Number ADR370
Manufacturers Analog Devices
Logo Analog Devices
Description Precision Low Power 2.048 V SOT-23 Voltage Reference
Datasheet ADR370 DatasheetADR370 Datasheet (PDF)

Precision Low Power 2.048 V SOT-23 Voltage Reference ADR370 FEATURES PIN CONFIGURATION OBSOLETE Initial accuracy: ±4 mV maximum Initial accuracy error: ±0.2% Low TCVO ±50 ppm/°C maximum from −40°C to +125°C 30 ppm/°C maximum from +25°C to +70°C Load regulation: 400 μV/mA, 100 ppm/mA Line regulation: 25 μV/V, 20 ppm/V Wide operating range: VIN = 2.3 V to 15 V Low power: 72 μA maximum High output sink/source current: ±5 mA minimum Wide temperature range: −40°C to +125°C Tiny 3-lead SOT-23 packa.

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Precision Low Power 2.048 V SOT-23 Voltage Reference ADR370 FEATURES PIN CONFIGURATION OBSOLETE Initial accuracy: ±4 mV maximum Initial accuracy error: ±0.2% Low TCVO ±50 ppm/°C maximum from −40°C to +125°C 30 ppm/°C maximum from +25°C to +70°C Load regulation: 400 μV/mA, 100 ppm/mA Line regulation: 25 μV/V, 20 ppm/V Wide operating range: VIN = 2.3 V to 15 V Low power: 72 μA maximum High output sink/source current: ±5 mA minimum Wide temperature range: −40°C to +125°C Tiny 3-lead SOT-23 package with standard pin configuration APPLICATIONS Battery-powered instrumentation Portable medical instruments Data acquisition systems Industrial process control systems Automotive GENERAL DESCRIPTION The ADR370 is a low cost, 3-terminal (series) band gap voltage reference featuring high accuracy, high stability, and low power consumption packaged in a tiny 3-lead SOT-23 package. Precise matching and thermal tracking of on-chip components, as well as patented temperature drift curvature correction design techniques, have been employed to ensure that the ADR370 provides an accurate 2.048 V output. 03432-001 VIN 1 VOUT 2 ADR370 3 GND Figure 1. 3-Lead SOT-23 Table 1. ADR370 Products Products ADR370BRT-REEL7 ADR370ART-REEL7 Output Voltage (V) 2.048 2.048 Initial Accuracy ± (mV) (%) 4 0.2 10 0.5 Temperature Coefficient (ppm/°C) 50 100 This micropowered, low dropout voltage device sources or sinks up to 5 mA of load current while providing a stable 2.048 V output. The compact footprint, high accuracy, and operating range of 2.3 V to 15 V make the ADR370 ideal for use in 3 V and 5 V systems where there can be wide variations in supply voltage and a need to minimize power dissipation. The ADR370 is offered in A and B grades; all devices are specified over the extended industrial range of −40°C to +125°C. Rev. C 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. Specifications subject to change without notice. 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. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2003–2007 Analog Devices, Inc. All rights reserved. ADR370 TABLE OF CONTENTS Features .............................................................................................. 1 Theory of Operation .........................................................................8 Applications....................................................................................... 1 Applying the ADR370...................................................................8 Pin Configuration...............................................................


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