AD820
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AD820

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

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Part Details
Part Models 10
1ku List Price Starting From $3.06
Features
  • True single-supply operation
    Output swings rail-to-rail
    Input voltage range extends below ground
    Single-supply capability from 5 V to 36 V
    Dual-supply capability from ±2.5 V to ±18 V 
  • Excellent load drive
    Capacitive load drive up to 350 pF
    Minimum output current of 15 mA 
  • Excellent ac performance for low power
    800 μA maximum quiescent current
    Unity-gain bandwidth: 1.8 MHz
    Slew rate of 3 V/μs 
  • Excellent 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 
Additional Details
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The AD820 is a precision, low power FET input op amp that can operate from a single supply of 5 V to 36 V, or dual supplies of ±2.5 V to ±18 V. It has true single-supply capability, with an input voltage range extending below the negative rail, allowing the AD820 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.

Offset voltage of 800 μV maximum, offset voltage drift of 2 μV/°C, typical input bias currents below 25 pA, and low input voltage noise provide dc precision with source impedances up to 1 GΩ. 1.8 MHz unity gain bandwidth, −93 dB THD at 10 kHz, and 3 V/μs slew rate are provided for a low supply current of 800 μA. The AD820 drives up to 350 pF of direct capacitive load and provides a minimum output current of 15 mA. This allows the amplifier to handle a wide range of load conditions. This combination of ac and dc performance, plus the outstanding load drive capability, results in an exceptionally versatile amplifier for the single-supply user.

The AD820 is available in two performance grades. The A and B grades are rated over the industrial temperature range of −40°C to +85°C. The AD820 is offered in three 8-lead package options: plastic DIP (PDIP), surface mount (SOIC) and (MSOP).

Applications

  • Battery-powered precision instrumentation
  • Photodiode preamps
  • Active filters
  • 12-bit to 14-bit data acquisition systems
  • Medical instrumentation
  • Low power references and regulators
  • Data Sheet, Rev. F, 11/08

    Part Models 10
    1ku List Price Starting From $3.06

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    Documentation

    Documentation

    Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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    AD820ARMZ
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    AD820ARMZ-R7
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    AD820ARMZ-RL
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    AD820ARZ
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    AD820ARZ-REEL
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    AD820ARZ-REEL7
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    AD820BRZ
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    AD820BRZ-REEL
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    AD820BRZ-REEL7
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    Product Lifecycle

    PCN

    Aug 19, 2009

    - 07_0024

    Package Material Changes for SOT23, MiniSO, MQFP, PDIP, PLCC, SOIC (narrow and wide body), SSOP, TSSOP and TSSOP exposed pad

    May 15, 2012

    - 10_0006

    Halogen Free Material Change for mini SOIC Products

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    Filter by Model

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    Product Lifecycle

    PCN

    Aug 19, 2009

    - 07_0024

    arrow down

    Package Material Changes for SOT23, MiniSO, MQFP, PDIP, PLCC, SOIC (narrow and wide body), SSOP, TSSOP and TSSOP exposed pad

    May 15, 2012

    - 10_0006

    arrow down

    Halogen Free Material Change for mini SOIC Products

    AD820ARMZ

    PRODUCTION

    AD820ARMZ-R7

    PRODUCTION

    AD820ARMZ-RL

    PRODUCTION

    Software & Part Ecosystem

    Software & Part Ecosystem

    Evaluation Kit

    Evaluation Kits 1

    EVAL-OPAMP-1

    EVAL-OPAMP-1 Evaluation Board

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    EVAL-OPAMP-1

    EVAL-OPAMP-1 Evaluation Board

    EVAL-OPAMP-1 Evaluation Board

    Product Detail

    The Universal Precision Op Amp Evaluation Boards have been designed and optimized for many circuit configurations allowing the users to best suit their applications. These boards are all RoHs Compliant. See references below on what board to order by lead count and package.

    • EVAL-PRAOPAMP-1KSZ (Single 5-Lead SC70) KS-5
    • EVAL-PRAOPAMP-1RJZ (Single 5-Lead SOT 23) RJ-5
    • EVAL-PRAOPAMP-1RMZ (Single 8-Lead MSOP) RM-8
    • EVAL-PRAOPAMP-1RZ (Single 8-Lead SOIC) R-8
    Tools & Simulations

    Tools & Simulations 5

    LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

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