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AD8622:  Low Power, Low Noise, Low Bias Current, Precision Dual RRO Op Amp

Product Details

Product Status:Recommended for New Designs

The AD8622 is a dual, precision rail-to-rail output operational amplifier with a low supply current of only 350 μA maximum over temperature and supply voltages. It also offers ultralow offset, drift, and voltage noise combined with very low input bias current over the full operating temperature range.

With typical offset voltage of only 10 μV, offset drift of 0.5 μV/°C, and noise of only 0.2 μV p-p (0.1 Hz to 10 Hz), it is perfectly suited for applications where large error sources cannot be tolerated. Many systems can take advantage of the low noise, dc precision, and rail-to-rail output swing provided by the AD8622 to maximize the signal-to-noise ratio and dynamic range for low power operation. The AD8622 is specified for the extended industrial temperature range of −40°C to +125°C and is available in lead-free SOIC and MSOP packages.


Applications

  • Portable precision instrumentation
  • Laser diode control loops
  • Medical Instrumentation
  • Strain gage amplifiers
  • Thermocouple amplifiers
  • FEATURES and BENEFITS

    • Low offset voltage: 125 μV max
    • Supply current: 215 μA/amp typ
    • Input bias current: 200 pA max
    • Low input offset voltage drift: 1.2 μV/°C max
    • Low voltage noise: 11 nV/√Hz
    • Operating temperature range:
      −40°C to +125°C
    • Rail-to-rail output swing
    • Unity gain stable
    • ±2.5 V to ±15 V operation

    AD8622 Pin Diagram

    Similar Products

    • ADA4077-2 a dual channel version in two grades offering lower offset and drift, higher bandwidth and slew rate with lower input bias current.
    • ADA4096-2 or ADA4096-4 a dual and quad with lower power, 30V, rail-to-rail input/output Op Amps.

    Documentation

    Title Content Type File Type
    AD8622/AD8624: Low Power, Precision Rail-to-Rail Output Op Amp Data Sheet (Rev D, 12/2013) (pdf, 597 kB) Data Sheets PDF
    CN-0240: Bidirectional Isolated High-Side Current Sense with 270 V Common-Mode Rejection  (pdf, 336 kB) Circuit Note PDF
    CN-0127: 8-Pole Active Low-Pass Filter Optimized for Precision, Low Noise, and High Gain Using the AD8622 and the ADA4062-2 Op Amps  (pdf, 109 kB) Circuit Note PDF
    MT-052: Op Amp Noise Figure: Don't Be Misled  (pdf, 60 kB) Tutorials PDF
    MS-2251: Data Sheet Intricacies—Absolute Maximum Ratings and Thermal Resistances  (pdf, 331 kB) Technical Articles PDF
    MS-2178: Discussion Between CareFusion and Analog Devices: Optimizing Performance and Lowering Power in an EEG Amplifer  (pdf, 147 kB) Technical Articles PDF
    SAR ADC & Driver Quick-Match Guide  (pdf, 251 kB)
    Find drivers for ADI's most popular single-ended and differential SAR ADCs based on your specific application conditions.
    Product Selection Guide PDF
    RAQs index Rarely Asked Questions HTML
    Glossary of EE Terms Glossary HTML

    Design Tools,Models,Drivers & Software

    Title Content Type File Type
    AD8622 SPICE Macro Model SPICE Models HTML

    Evaluation Kits & Symbols & Footprints

    Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

    Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

    Product Recommendations & Reference Designs

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    Price, packaging, availability

    AD8622 Model Options
    Model Package Pins Temp.
    Range
    Packing,
    Qty
    Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    AD8622ARMZ Status: Production 8 ld MSOP 8 Ind Tube, 50 $2.57 $1.96 Y  Material Info PCN Purchase Sample
    AD8622ARMZ-R7 Status: Production 8 ld MSOP 8 Ind Reel, 1000 - $1.96 Y  Material Info PCN Purchase
    AD8622ARMZ-REEL Status: Production 8 ld MSOP 8 Ind Reel, 3000 - $1.96 Y  Material Info PCN Purchase
    AD8622ARZ Status: Production 8 ld SOIC 8 Ind Tube, 98 $2.57 $1.96 Y  Material Info PCN Purchase Sample
    AD8622ARZ-REEL Status: Production 8 ld SOIC 8 Ind Reel, 2500 - $1.96 Y  Material Info PCN Purchase
    AD8622ARZ-REEL7 Status: Production 8 ld SOIC 8 Ind Reel, 1000 - $1.96 Y  Material Info PCN Purchase
    Price Table Help

    The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

    EVAL-OPAMP-2 Evaluation Board
    Model Description Price RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    EVAL-PRAOPAMP-2CPZ Status: Production Dual CP-8 lead LFCSP Evaluation Board $20.19 Yes -
    EVAL-PRAOPAMP-2RMZ Status: Production Dual RM-8 lead MSOP Evaluation Board $20.19 Yes -
    EVAL-PRAOPAMP-2RZ Status: Production Dual R-8 lead SOIC Evaluation Board $20.19 Yes -

    Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

    Check Inventory & Purchase

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