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ADR821BRMZ-R21 Datasheet(PDF) 1 Page - Analog Devices |
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ADR821BRMZ-R21 Datasheet(HTML) 1 Page - Analog Devices |
1 / 20 page Low Power, Precision Reference and Op Amp ADR821/ADR827 Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. 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 ©2007 Analog Devices, Inc. All rights reserved. FEATURES 10-lead MSOP 400 μA supply current −40°C to +125°C temperature range On-board precision resistors Reference ADR821: 2.8 V to 15 V operation ADR827: 2.7 V to 15 V operation ±0.2% initial accuracy 15 ppm/°C temperature drift maximum +5 mA/−3 mA output drive Amplifier ADR821 ±2.8 V to ±15 V operation 2.8 V to 15 V single-supply operation ADR827 ±2.7 V to ±15 V operation 2.7 V to 15 V single-supply operation Rail-to-rail input and output 500 μV offset voltage maximum 50 nA bias current maximum Unity gain stable No phase reversal APPLICATIONS Battery-powered instrumentation Portable medical instrumentation Data acquisition systems Industrial process controls Automotive applications FUNCTIONAL BLOCK DIAGRAM V+ R1 GND NC V– AMP_OUT R2 +IN –IN NC = NO CONNECT 1 2 3 4 5 10 9 8 7 6 REF R1 R2 REF_OUT ADR821/ADR827 Figure 1. Table 1. Selection Table Part No. Reference VOUT Reference Accuracy Reference Temperature Coefficient ADR827ARMZ 1.25 V ±0.4% 30 ppm/°C ADR827BRMZ 1.25 V ±0.2% 15 ppm/°C ADR821ARMZ 2.50 V ±0.4% 30 ppm/°C ADR821BRMZ 2.50 V ±0.2% 15 ppm/°C GENERAL DESCRIPTION The ADR821/ADR827 combines a precision voltage reference and an op amp in a 10-lead mini small outline package (MSOP). The reference and the op amp can be operated independently, offering the user a range of flexibility when arranging the combination. Featuring a combined operating current of less than 400 μA and 15 ppm/°C temperature drift on the reference, the ADR821/ADR827 are ideally suited for applications requir- ing precision and low power. Available with the reference at 1.25 V and at 2.5 V, the ADR821/ADR827 also come in two grades. The reference on the A grade offers 30 ppm/°C temperature drift performance and ±0.4% initial accuracy. The B grade provides a tighter temperature drift performance of 15 ppm/°C and only ±0.2% initial accuracy. All versions operate from −40°C to +125°C. |
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