AD8551 Zero-Drift, Single-Supply, RRIO Single Op Amp

This family of amplifiers has ultralow offset, drift, and bias current. The AD8551, AD8552, and AD8554 are single, dual, and quad amplifiers featuring rail-to-rail input and output swings. All are guaranteed to operate from 2.7 V to 5 V with a single supply.

The AD8551/AD8552/AD8554 provide the benefits previously found only in expensive auto-zeroing or chopper-stabilized amplifiers. Using Analog Devices, Inc. topology, these new zero-drift amplifiers combine low cost with high accuracy. No external capacitors are required.

With an offset voltage of only 1 μV and drift of 0.005 μV/°C, the AD8551/AD8552/AD8554 are perfectly suited for applications in which error sources cannot be tolerated. Temperature, position and pressure sensors, medical equipment, and strain gage amplifiers benefit greatly from nearly zero drift over their operating temperature range. The rail-to-rail input and output swings provided by the AD8551/AD8552/AD8554 make both high-side and low-side sensing easy.

The AD8551/AD8552/AD8554 are specified for the extended industrial/auto motive temperature range (−40°C to +125°C). The AD8551 single amplifier is available in 8-lead MSOP and 8-lead narrow SOIC packages. The AD8552 dual amplifier is available in 8-lead narrow SOIC and 8-lead TSSOP surface-mount packages. The AD8554 quad is available in 14-lead narrow SOIC and 14-lead TSSOP packages.

Applications
  • Temperature sensors
  • Pressure sensors
  • Precision current sensing
  • Strain gage amplifiers
  • Medical instrumentation
  • Thermocouple amplifiers
Features and Benefits
  • Low offset voltage: 1 μV
  • Input offset drift: 0.005 μV/°C
  • Rail-to-rail input and output swing
  • 5 V/2.7 V single-supply operation
  • High gain, CMRR, PSRR:
    130 dB
  • Ultralow input bias current:
    20 pA
  • Low supply current:
    700 μA/op amp
  • Overload recovery time: 50 μs
  • No external capacitors required
  • Amplifiers
    SPICE Models
    Data Sheets
    Documentnote
    AD8551/AD8552/AD8554: Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Operational Amplifiers Data Sheet (Rev. F)PDF 565 kB
    Application Notes
    Documentnote
    AN-106: A Collection of Amp ApplicationsPDF 1094 kB
    AN-934: 60 dB Wide Dynamic Range, Low Frequency AGC Circuit Using a Single VGA (Rev. 0)PDF 317 kB
    AN-649: Using the Analog Devices Active Filter Design Tool (Rev. 0)PDF 5.3 M
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    AD8551ARM-REEL Production8 ld MSOPREEL 3000-40 to 125C1.541.38N
    AD8551ARMZ Production8 ld MSOPOTH 50-40 to 125C1.371.22Y
    AD8551ARMZ-REEL Production8 ld MSOPREEL 3000-40 to 125C01.22Y
    AD8551ARZ Production8 ld SOICOTH 98-40 to 125C1.371.22Y
    AD8551ARZ-REEL Production8 ld SOICREEL 2500-40 to 125C01.22Y
    AD8551ARZ-REEL7 Production8 ld SOICREEL 1000-40 to 125C01.22Y
    Evaluation Boards
    Part NumberDescriptionPriceRoHS
    EVAL-PRAOPAMP-1KSZSingle KS-5 lead SC70 Evaluation Board20.19Y
    EVAL-PRAOPAMP-1RJZSingle RJ-5 lead SOT23 Evaluation Board20.19Y
    EVAL-PRAOPAMP-1RMZSingle RM-8 lead MSOP Evaluation Board20.19Y
    EVAL-PRAOPAMP-1RZSingle R-8 lead SOIC Evaluation Board20.19Y
    Reference Materials
    AD8551/AD8552/AD8554: Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Operational Amplifiers Data Sheet (Rev. F) ad8551
    AD8551 SPICE Macro-Model ad8551
    AN-106: A Collection of Amp Applications ad8532
    AN-934: 利用单VGA实现60dB宽动态范围、低频AGC电路 (Rev. 0) ad8336
    AN-934: 60 dB Wide Dynamic Range, Low Frequency AGC Circuit Using a Single VGA (Rev. 0) ad8336
    AN-649: Using the Analog Devices Active Filter Design Tool (Rev. 0) ad8350
    Demystifying Auto-Zero Amplifiers Part 1 ad8551
    MS-2062:斩波还是自稳零:是个问题 ad8551