Features and Benefits

  • Easy to use
  • Pin strappable gains of 10 and 100
  • Wide power supply range: ±2.3 V to ±18 V
  • DC specifications (B Grade, G = 10)
    2 ppm/°C gain drift
    0.02% gain error
    50 μV maximum input offset voltage
    0.8 μV/°C maximum input offset drift
    0.6 nA maximum input bias current
    100 dB CMRR
  • AC specifications
    650 kHz, –3 dB bandwidth (G = 10)
    2 V/μs slew rate
  • Low noise
    8 nV/√Hz, @ 1 kHz (G = 100)
    0.3 μV p-p from 0.1 Hz to 10 Hz (G = 100)

Product Details

The AD8228 is a high performance instrumentation amplifier with very high gain accuracy. Because all gain setting resistors are internal and laser trimmed, gain accuracy and gain drift are better than can be achieved with typical instrumentation amplifiers.

Low voltage offset, low offset drift, low gain drift, high gain accuracy, and high CMRR make this part an excellent choice in applications that demand the best dc performance possible, such as bridge signal conditioning.

The AD8228 operates on both single and dual supplies. Because the part can operate on supplies up to ±18 V, it is well suited for applications where high common-mode input voltages are encountered. The AD8228 is available in 8-lead MSOP and SOIC packages.

Performance is specified over the entire industrial temperature range of −40°C to +85°C for all grades. Furthermore, the AD8228 is operational from −40°C to +125°C. For a pin-compatible amplifier with similar specifications, but with a gain range of 1 to 1000, see the AD8221.


  • Weigh scales
  • Industrial process controls
  • Bridge amplifiers
  • Precision data acquisition systems
  • Medical instrumentation
  • Strain gages
  • Transducer interfaces
  • Data Sheet, Rev 0, 08/2008

    Product Lifecycle icon-recommended Production

    At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

    Evaluation Kits (1)

    Tools & Simulations

    In-Amp Diamond Plot Tool

    The Diamond Plot Tool is a web application that generates a configuration-specific Output Voltage Range vs. Input Common-Mode Voltage graph, also known as the Diamond Plot, for Analog Devices Instrumentation Amplifiers. Based on user inputs such as supply voltage, gain, and input signal range, the tool detects saturation and recommends in-amps for which the input signal is in-range and the configuration is valid. Avoid saturation, find the best in-amp for your design, and save time.

    In Amp Diamond Tool

    SPICE Models

    Design Resources

    ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

    PCN-PDN Information

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    Evaluation Boards

    Pricing displayed is based on 1-piece.

    Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.

    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.