Single-Supply, Rail-to-Rail Low Power FET-Input Op Amp ...

1 single - supply , Rail-to-Rail Low Power FET-Input Op Amp Data Sheet AD822 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 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 . Trademarks and registered trademarks are the property of their respective owners. One Technology Way, Box 9106, Norwood, MA 02062-9106, Tel: 1993 2015 analog devices , Inc. All rights reserved. Technical Support FEATURES Tr ue si ngle- 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 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 A maximum quiescent current per amplifier Unity-gain bandwidth.

2 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 CONNECTION DIAGRAM 12348765AD822 OUT1 IN1+IN1V V+OUT2 IN2+IN200874-001 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 from dual supplies of 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.

3 Output voltage swing extends 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 MHz unity-gain bandwidth, 93 dB total harmonic distortion (THD) at 10 kHz, and 3 V/ s slew rate are provided with a low supply current of 800 A per amplifier. FREQUENCY (Hz)11010k1k100 input VOLTAGE NOISE (nV/ Hz)1001000874-002 Figure 2. input Voltage Noise vs. Frequency AD822* PRODUCT PAGE QUICK LINKSLast Content Update: 06/09/2017 COMPARABLE PARTSView a parametric search of comparable KITS EVAL-OPAMP-2 Evaluation BoardDOCUMENTATIONA pplication Notes AN-256: Accurately Testing Op Amp Settling Times AN-649: Using the analog devices Active Filter Design ToolData Sheet AD822-DSCC: Military Data Sheet AD822-EP: Enhanced Product Data Sheet AD822.

4 single supply , Rail-to-Rail Low Power FET-Input Op Amp Data SheetTOOLS AND SIMULATIONS analog Filter Wizard analog Photodiode Wizard AD822 SPICE Macro ModelsREFERENCE DESIGNS CN0064 DESIGN RESOURCES AD822 Material Declaration PCN-PDN Information Quality And Reliability Symbols and FootprintsDISCUSSIONSView all AD822 EngineerZone AND BUYV isit the product page to see pricing SUPPORTS ubmit a technical question or find your regional support FEEDBACKS ubmit feedback for this data page is dynamically generated by analog devices , Inc., and inserted into this data sheet. A dynamic change to the content on this page will not trigger a change to either the revision number or the content of the product data sheet. This dynamic page may be frequently Data Sheet Rev.

5 J | Page 2 of 24 TABLE OF CONTENTS Features .. 1 Applications .. 1 Connection Diagram .. 1 General Description .. 1 Revision History .. 2 Specifications .. 4 Absolute Maximum Ratings .. 10 Thermal Resistance .. 10 Maximum Power Dissipation .. 10 ESD Caution .. 10 Typical Performance Characteristics .. 11 Applications Information .. 18 input Characteristics .. 18 Output 18 single - supply Voltage to Frequency Converter .. 19 single - supply Programmable Gain Instrumentation Amplifier .. 20 Low Dropout Bipolar Bridge Driver .. 20 Outline Dimensions .. 21 Ordering Guide .. 22 REVISION HISTORY 9/15 Rev. I to Rev. J Changes to Figure 12 .. 12 1/10 Rev. H to Rev. I Changes to Features Section and General Description Section . 1 Changes to Endnote 1, Table 1 .. 5 Changes to Endnote 1, Table 2.

6 7 Changes to Endnote 1, Ta b l e 3 .. 9 Deleted Table 4; Renumbered 10 Changes to Table 5 .. 12 Updated Outline Dimensions .. 21 Changes to Ordering Guide .. 22 Deleted 3 V, single - supply Stereo Headphone Driver Section . 22 Deleted Figure 50; Renumbered 22 8/08 Rev. G to Rev H. Changes to Features Section and General Description Section . 1 Changed VO to VOUT Throughout .. 4 Changes to Ta b l e 1 .. 4 Changes to Table 2 .. 6 Changes to Table 3 .. 8 Changes to Table 5 .. 12 Added Table 6; Renumbered Sequentially .. 12 Changes to Figure 13 Caption .. 14 Changes to Figure 29, Figure 31, and Figure 35 .. 17 Changes to Figure 36 .. 18 Changed Application Notes Section to Applications Information Section .. 20 Changes to Figure 46 and Figure 47 .. 21 Changes to Figure 49.

7 22 Changes to Figure 51 .. 23 6/06 Rev. F to Rev. G Changes to Features .. 1 Changes to Table 4 .. 10 Changes to Table 5 .. 12 Changes to Table 6 .. 22 10/05 Rev. E to Rev. F Updated Format .. Universal Changes to Outline Dimensions .. 24 Updated Ordering Guide .. 24 1/03 Rev. D to Rev. E Edits to Specifications .. 2 Edits to Figure 10 .. 16 Updated Outline Dimensions .. 17 10/02 Rev. C to Rev. D Edits to 1 Edits to Ordering Guide .. 6 Updated SOIC Package Outline .. 17 8/02 Rev. B to Rev. C All Figures Updated .. Universal Edits to 1 Updated All Package Outlines .. 17 7/01 Rev. A to Rev. B All Figures Updated .. Universal CERDIP References Removed .. 1, 6, and 18 Additions to Product Description .. 1 8-Lead SOIC and 8-Lead MSOP Diagrams Added .. 1 Deletion of AD822S Column.

8 2 Edits to Absolute Maximum Ratings and Ordering Guide .. 6 Removed Metallization Photograph .. 6 7/93 Revision 0: Initial Version Data Sheet AD822 Rev. J | Page 3 of 24 The AD822 drives up to 350 pF of direct capacitive load as a follower and provides a minimum output current of 15 mA. This allows the amplifier to handle a wide range of load conditions. Its combination of ac and dc performance, plus the outstanding load drive capability, results in an exceptionally versatile amplifier for the single - supply user. The AD822 is available in two performance grades. The A grade and B grade are rated over the industrial temperature range of 40 C to +85 C. The AD822 is offered in three varieties of 8-lead packages: PDIP, MSOP, and SOIC_N. 90100100%..VOUT5V0V(GND)1V20 s1V1V00874-003 Figure 3.

9 Gain of 2 Amplifier; VS = 5 V, 0 V, VIN = V Sine Centered at V, RL = 100 AD822 Data Sheet Rev. J | Page 4 of 24 SPECIFICATIONS VS = 0 V, 5 V at TA = 25 C, VCM = 0 V, VOUT = V, unless otherwise noted. Table 1. Parameter Test Conditions/Comments A Grade B Grade Unit Min Typ Max Min Typ Max DC PERFORMANCE Initial Offset mV Maximum Offset Over Temperature mV Offset Drift 2 2 V/ C input Bias Current VCM = 0 V to 4 V 2 25 2 10 pA At TMAX 5 nA input Offset Current 2 20 2 10 pA At TMAX nA Open-Loop Gain VOUT = V to 4 V RL = 100 k 500 1000 500 1000 V/mV TMIN to TMAX 400 400 V/mV RL = 10 k 80 150 80 150 V/mV TMIN to TMAX 80 80 V/mV RL = 1 k 15 30 15 30 V/mV TMIN to TMAX 10 10 V/mV NOISE/HARMONIC PERFORMANCE input Voltage Noise f = Hz to 10 Hz 2 2 V p-p f = 10 Hz 25 25 nV/ Hz f = 100 Hz 21 21 nV/ Hz f = 1 kHz 16 16 nV/ Hz f = 10 kHz 13

10 13 nV/ Hz input Current Noise f = Hz to 10 Hz 18 18 fA p-p f = 1 kHz fA/ Hz Harmonic Distortion RL = 10 k to V f = 10 kHz VOUT = V to V 93 93 dB DYNAMIC PERFORMANCE Unity-Gain Frequency MHz Full Power Response VOUT p-p = V 210 210 kHz Slew Rate 3 3 V/ s Settling Time To VOUT = V to V s To VOUT = V to V s MATCHING CHARACTERISTICS Initial Offset mV Maximum Offset Over Temperature mV Offset Drift 3 3 V/ C input Bias Current 20 10 pA Crosstalk @ f = 1 kHz RL = 5 k 130 130 dB Crosstalk @ f = 100 kHz RL = 5 k 93 93 dB Data Sheet AD822 Rev. J | Page 5 of 24 Parameter Test Conditions/Comments A Grade B Grade Unit Min Typ Max Min Typ Max input CHARACTERISTICS input Voltage Range1, TMIN to TMAX +4 +4 V Common-Mode Rejection Ratio (CMRR)