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AD822AR Datasheet(PDF) 1 Page - Analog Devices |
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AD822AR Datasheet(HTML) 1 Page - Analog Devices |
1 / 24 page Single-Supply, Rail-to-Rail Low Power FET-Input Op Amp AD822 Rev. I Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother 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 ©1993–2010 Analog Devices, Inc. All rights reserved. FEATURES True single-supply operation Output swings rail-to-rail Input voltage range extends below ground Single-supply capability from 5 V to 30 V Dual-supply capability from ±2.5 V to ±15 V High load drive Capacitive load drive of 350 pF, G = +1 Minimum output current of 15 mA Excellent ac performance for low power 800 μA maximum quiescent current per amplifier Unity-gain bandwidth: 1.8 MHz Slew rate of 3 V/μs Good dc performance 800 μV maximum input offset voltage 2 μV/°C typical offset voltage drift 25 pA maximum input bias current Low noise 13 nV/√Hz @ 10 kHz No phase inversion APPLICATIONS Battery-powered precision instrumentation Photodiode preamps Active filters 12-bit to 14-bit data acquisition systems Medical instrumentation Low power references and regulators CONNECTION DIAGRAM 1 2 3 4 8 7 6 5 AD822 OUT1 –IN1 +IN1 V– V+ OUT2 –IN2 +IN2 Figure 1. 8-Lead PDIP (N Suffix); 8-Lead MSOP (RM Suffix); and 8-Lead SOIC_N (R Suffix) GENERAL DESCRIPTION The AD822 is a dual precision, low power FET input op amp that can operate from a single supply of 5 V to 30 V or dual supplies of ±2.5 V to ±15 V. It has true single-supply capability with an input voltage range extending below the negative rail, allowing the AD822 to accommodate input signals below ground in the single-supply mode. Output voltage swing extends to within 10 mV of each rail, providing the maximum output dynamic range. FREQUENCY (Hz) 1 10 10k 1k 100 100 10 Figure 2. Input Voltage Noise vs. Frequency Offset voltage of 800 μV maximum, offset voltage drift of 2 μV/°C, input bias currents below 25 pA, and low input voltage noise provide dc precision with source impedances up to a gigaohm. The 1.8 MHz unity-gain bandwidth, –93 dB THD at 10 kHz, and 3 V/μs slew rate are provided with a low supply current of 800 μA per amplifier. |
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