Single-Supply, Rail-to-Rail Low Power FET-Input Op Amp AD822-EP FEATURES CONNECTION DIAGRAM True single-supply operation 1 8 OUT1 V+ Input voltage range extends below ground 2 OUT2 IN1 7 Output swings rail-to-rail +IN1 3 6 IN2 Single-supply capability from 5 V to 30 V Dual-supply capability from 2.5 V to 15 V 4 V 5 +IN2 AD822-EP High load drive Figure 1. 8-Lead SOIC N (R Suffix) Capacitive load drive of 350 pF, G = +1 Minimum output current of 15 mA GENERAL DESCRIPTION Excellent ac performance for low power The AD822-EP is a dual precision, low power FET input op 800 A maximum quiescent current per amplifier amp that can operate from a single supply of 5 V to 30 V or dual Unity-gain bandwidth: 1.8 MHz supplies of 2.5 V to 15 V. It has true single-supply capability Slew rate of 3 V/s with an input voltage range extending below the negative rail, Good dc performance allowing the AD822 to accommodate input signals below 800 V maximum input offset voltage ground in the single-supply mode. Output voltage swing 2 V/C typical offset voltage drift extends to within 10 mV of each rail, providing the maximum 25 pA maximum input bias current output dynamic range. Low noise 100 13 nV/Hz 10 kHz No phase inversion ENHANCED PRODUCT FEATURES Supports defense and aerospace applications (AQEC standard) Military temperature range (55C to +125C) 10 Controlled manufacturing baseline One assembly/test site One fabrication site Enhanced product change notification Qualification data available on request 1 APPLICATIONS 10 100 1k 10k FREQUENCY (Hz) Photodiode preamps Figure 2. Input Voltage Noise vs. Frequency Active filters Offset voltage of 800 V maximum, offset voltage drift of 2 V/C, 12-bit to 14-bit data acquisition systems input bias currents below 25 pA, and low input voltage noise Low power references and regulators 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/s slew rate are provided with a low supply current of 800 A per amplifier. 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 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 2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. INPUT VOLTAGE NOISE (nV/ Hz) 09208-001 09208-002AD822-EP TABLE OF CONTENTS Features .............................................................................................. 1 Absolute Maximum Ratings ......................................................... 10 Enhanced Product Features ............................................................ 1 Thermal Resistance.................................................................... 10 Applications....................................................................................... 1 ESD Caution................................................................................ 10 Connection Diagram ....................................................................... 1 Typical Performance Characteristics ........................................... 11 General Description ......................................................................... 1 Outline Dimensions....................................................................... 18 Revision History ............................................................................... 2 Ordering Guide .......................................................................... 18 Specifications..................................................................................... 4 REVISION HISTORY 6/10Revision 0: Initial Version Rev. 0 Page 2 of 20