Datasheet ADR821, ADR827 (Analog Devices)

FabricanteAnalog Devices
Descripción1.25V Low Power, Precision Reference and Op Amp
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Low Power, Precision Reference. and Op Amp. ADR821/ADR827. FEATURES. FUNCTIONAL BLOCK DIAGRAM. 10-lead MSOP. 400 μA supply current

Datasheet ADR821, ADR827 Analog Devices

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Low Power, Precision Reference and Op Amp ADR821/ADR827 FEATURES FUNCTIONAL BLOCK DIAGRAM 10-lead MSOP ADR821/ADR827 400 μA supply current V+ 1 10 AMP_OUT R −40°C to +125°C temperature range 1 R2 R1 2 9 R2 On-board precision resistors GND 3 8 –IN Reference ADR821: 2.8 V to 15 V operation NC 4 7 +IN REF ADR827: 2.7 V to 15 V operation V– 5 6 REF_OUT
1
±0.2% initial accuracy
00 5- 66
15 ppm/°C temperature drift maximum NC = NO CONNECT
06
+5 mA/−3 mA output drive
Figure 1.
Amplifier ADR821 ±2.8 V to ±15 V operation Table 1. Selection Table 2.8 V to 15 V single-supply operation Reference ADR827 Reference Reference Temperature ±2.7 V to ±15 V operation Part No. VOUT Accuracy Coefficient 2.7 V to 15 V single-supply operation
ADR827ARMZ 1.25 V ±0.4% 30 ppm/°C
Rail-to-rail input and output
ADR827BRMZ 1.25 V ±0.2% 15 ppm/°C
500 μV offset voltage maximum
ADR821ARMZ 2.50 V ±0.4% 30 ppm/°C
50 nA bias current maximum
ADR821BRMZ 2.50 V ±0.2% 15 ppm/°C
Unity gain stable No phase reversal APPLICATIONS Battery-powered instrumentation Portable medical instrumentation Data acquisition systems Industrial process controls Automotive applications GENERAL DESCRIPTION
The ADR821/ADR827 combines a precision voltage reference Available with the reference at 1.25 V and at 2.5 V, the and an op amp in a 10-lead mini small outline package (MSOP). ADR821/ADR827 also come in two grades. The reference on The reference and the op amp can be operated independently, the A grade offers 30 ppm/°C temperature drift performance offering the user a range of flexibility when arranging the and ±0.4% initial accuracy. The B grade provides a tighter combination. Featuring a combined operating current of less temperature drift performance of 15 ppm/°C and only ±0.2% than 400 μA and 15 ppm/°C temperature drift on the reference, initial accuracy. All versions operate from −40°C to +125°C. the ADR821/ADR827 are ideally suited for applications requir- ing precision and low power.
Rev. 0 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 license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Tel: 781.329.4700 www.analog.com Trademarks and registered trademarks are the property of their respective owners. Fax: 781.461.3113 ©2007 Analog Devices, Inc. All rights reserved.
Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION REVISION HISTORY SPECIFICATIONS ADR821 ELECTRICAL CHARACTERISTICS—REFERENCE ADR821 ELECTRICAL CHARACTERISTICS—AMPLIFIER (VS = ±2.8 V) ADR821 ELECTRICAL CHARACTERISTICS—AMPLIFIER (VS = ±15 V) ADR827 ELECTRICAL CHARACTERISTICS—REFERENCE ADR827 ELECTRICAL CHARACTERISTICS—AMPLIFIER (VS = ±2.7 V) ADR827 ELECTRICAL CHARACTERISTICS—AMPLIFIER (VS = ±15 V) ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS REFERENCE AMPLIFIER APPLICATIONS INFORMATION +2.5 V AND −2.5 V OUTPUTS (ADR821) 2.5 V AND 5.0 V OUTPUTS (ADR821) MULTIPLE 2.5 V OUTPUTS (ADR821) OUTLINE DIMENSIONS ORDERING GUIDE