Single-Supply, Rail-to-Rail Low Power FET-Input Op Amp Data Sheet AD822 FEATURES CONNECTION DIAGRAM True single-supply operation 8 OUT1 1 V+ Output swings rail-to-rail 2 OUT2 IN1 7 Input voltage range extends below ground +IN1 3 6 IN2 Single-supply capability from 5 V to 30 V 4 5 Dual-supply capability from 2.5 V to 15 V V +IN2 AD822 High load drive Figure 1. 8-Lead PDIP (N Suffix) Capacitive load drive of 350 pF, G = +1 8-Lead MSOP (RM Suffix) Minimum output current of 15 mA and 8-Lead SOIC N (R Suffix) Excellent ac performance for low power 800 A maximum quiescent current per amplifier Unity-gain bandwidth: 1.8 MHz Slew rate of 3 V/s Good dc performance 800 V maximum input offset voltage 2 V/C typical offset voltage drift 25 pA maximum input bias current Low noise 13 nV/Hz at 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 GENERAL DESCRIPTION 100 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 from 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 while in the single-supply mode. Output voltage swing extends 10 to within 10 mV of each rail, providing the maximum output dynamic range. Offset voltage of 800 V maximum, offset voltage drift of 2 V/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 total harmonic 1 10 100 1k 10k distortion (THD) at 10 kHz, and 3 V/s slew rate are provided FREQUENCY (Hz) with a low supply current of 800 A per amplifier. Figure 2. Input Voltage Noise vs. Frequency Rev. J Document Feedback 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. 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Technical Support www.analog.com INPUT VOLTAGE NOISE (nV/Hz) 00874-001 00874-002AD822 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Typical Performance Characteristics ........................................... 11 Applications ....................................................................................... 1 Applications Information .............................................................. 18 Connection Diagram ....................................................................... 1 Input Characteristics .................................................................. 18 General Description ......................................................................... 1 Output Characteristics............................................................... 18 Revision History ............................................................................... 2 Single-Supply Voltage to Frequency Converter ..................... 19 Specifications ..................................................................................... 4 Single-Supply Programmable Gain Instrumentation Amplifier ..................................................................................... 20 Absolute Maximum Ratings .......................................................... 10 Low Dropout Bipolar Bridge Driver ........................................ 20 Thermal Resistance .................................................................... 10 Outline Dimensions ....................................................................... 21 Maximum Power Dissipation ................................................... 10 Ordering Guide .......................................................................... 22 ESD Caution ................................................................................ 10 REVISION HISTORY 9/15Rev. I to Rev. J 10/05Rev. E to Rev. F Changes to Figure 12 ...................................................................... 12 Updated Format .................................................................. Universal Changes to Outline Dimensions .................................................. 24 1/10Rev. H to Rev. I Updated Ordering Guide .............................................................. 24 Changes to Features Section and General Description Section . 1 Changes to Endnote 1, Table 1 ........................................................ 5 1/03Rev. D to Rev. E Changes to Endnote 1, Table 2 ........................................................ 7 Edits to Specifications ....................................................................... 2 Changes to Endnote 1, Table 3 ........................................................ 9 Edits to Figure 10 ............................................................................ 16 Deleted Table 4 Renumbered Sequentially................................. 10 Updated Outline Dimensions ....................................................... 17 Changes to Table 5 .......................................................................... 12 Updated Outline Dimensions ....................................................... 21 10/02Rev. C to Rev. D Changes to Ordering Guide .......................................................... 22 Edits to Features................................................................................. 1 Deleted 3 V, Single-Supply Stereo Headphone Driver Section . 22 Edits to Ordering Guide ................................................................... 6 Deleted Figure 50 Renumbered Sequentially............................. 22 Updated SOIC Package Outline ................................................... 17 8/02Rev. B to Rev. C 8/08Rev. G to Rev H. Changes to Features Section and General Description Section . 1 All Figures Updated ........................................................... Universal Changed VO to VOUT Throughout ................................................... 4 Edits to Features.................................................................................1 Changes to Table 1 ............................................................................ 4 Updated All Package Outlines ...................................................... 17 Changes to Table 2 ............................................................................ 6 Changes to Table 3 ............................................................................ 8 7/01Rev. A to Rev. B Changes to Table 5 .......................................................................... 12 All Figures Updated ........................................................... Universal CERDIP References Removed ....................................... 1, 6, and 18 Added Table 6 Renumbered Sequentially .................................. 12 Additions to Product Description ................................................... 1 Changes to Figure 13 Caption ....................................................... 14 Changes to Figure 29, Figure 31, and Figure 35 ......................... 17 8-Lead SOIC and 8-Lead MSOP Diagrams Added ...................... 1 Changes to Figure 36 ...................................................................... 18 Deletion of AD822S Column ........................................................... 2 Changed Application Notes Section to Applications Edits to Absolute Maximum Ratings and Ordering Guide ......... 6 Information Section ....................................................................... 20 Removed Metallization Photograph ............................................... 6 Changes to Figure 46 and Figure 47 ............................................. 21 Changes to Figure 49 ...................................................................... 22 7/93Revision 0: Initial Version Changes to Figure 51 ...................................................................... 23 6/06Rev. F to Rev. G Changes to Features .......................................................................... 1 Changes to Table 4 .......................................................................... 10 Changes to Table 5 .......................................................................... 12 Changes to Table 6 .......................................................................... 22 Rev. J Page 2 of 24