AD8226

Wide Supply Range, Rail-to-Rail Output Instrumentation Amplifier
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Product Details

The AD8226 is a low cost, wide supply range instrumentation amplifier that requires only one external resistor to set any gain between 1 and 1000.

The AD8226 is designed to work with a variety of signal voltages. A wide input range and rail-to-rail output allow the signal to make full use of the supply rails. Because the input range also includes the ability to go below the negative supply, small signals near ground can be amplified without requiring dual supplies. The AD8226 operates on supplies ranging from ±1.35 V to ±18 V for dual supplies and 2.2 V to 36 V for single supply.

The robust AD8226 inputs are designed to connect to real-world sensors. In addition to its wide operating range, the AD8226 can handle voltages beyond the rails. For example, with a ±5 V supply, the part is guaranteed to withstand ±35 V at the input with no damage. Minimum as well as maximum input bias currents are specified to facilitate open wire detection.

The AD8226 is perfect for multichannel, space-constrained industrial applications. Unlike other low cost, low power instrumentation amplifiers, the AD8226 is designed with a minimum gain of 1 and can easily handle ±10 V signals. With its MSOP package and 125°C temperature rating, the AD8226 thrives in tightly packed, zero airflow designs.

The AD8226 is available in 8-lead MSOP and SOIC packages, and is fully specified for −40°C to +125°C operation.

For a device with a similar package and performance as the AD8226 but with gain settable from 5 to 1000, consider using the AD8227.

Applications

  • Industrial process controls
  • Bridge amplifiers
  • Medical instrumentation
  • Portable data acquisition
  • Multichannel systems
  • Data Sheet, Rev A, 7/2009

    Product Lifecycle

    checked Recommended for New Designs

    This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

    Evaluation Kits

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    Product Details

    Analog Devices provides a line of evaluation boards designed to help users evaluate our instrumentation amplifiers in 8 pin packages. Access the user guide UG-261.


    This user guide describes three generic evaluation boards that can be used to evaluate many of Analog Devices instrumentation amplifiers. For information on the performance of a specific instrumentation amplifier, see the data sheet for that instrumentation amplifier.


    • 3 generic, easy-to-use evaluation boards
    • Shipped with an assortment of Analog Devices, Inc., in-amps
    • Solder in the in-amp to be tested
    • Test pins already populated
    • Decoupling capacitors already populated
    • EVAL-INAMP-62RZ board: Compatible with AD620, AD621, AD622, AD623, AD627, AD8223, and AD8225 in SOIC or PDIP
    • EVAL-INAMP-82RZ board: Compatible with AD8221, AD8226, AD8227, AD8228, AD8229, AD8421, AD8422, AD8428, and AD8429 in SOIC package
    • EVAL-INAMP-82RMZ board: Compatible with AD8220, AD8221, AD8226, AD8227, AD8228, AD8236, AD8421, and AD8422 in MSOP package

    Tools & Simulations

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    SPICE Models

    Design Tools

    Reference Designs

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    CN0295 Circuit Diagram

    CN0295 Photo

    CN0289 Circuit Diagram

    CN0289 Photo

    CN0251 Circuit Diagram

    CN0251 Photo

    Design Resources

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    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.

    AD8226 Material Declaration
    PCN-PDN Information Quality And Reliability Symbols and Footprints

    Reviews

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    Overview

    8 Reviews
    8 out of 8 (100%) customers recommend this product.
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    Most Helpful Review

    by BrendanPFlynn
    The AD8226 is a great fit for economic sensing. The response frequencies, CMRR, and wide tolerance range for inputs and supply voltage make it versatile. What would make this IC better? High ESD protection tolerances on inputs and lower output range overhead for low-voltage applications.

    Most Recent Review

    by Soochan Kim
    I am satisfied its spec and function. It has wide operating voltages.

    All Reviews

    by Soochan Kim, 10 Sep 14
    Good.
    I am satisfied its spec and function. It has wide operating voltages.
    Was this Helpful?Helpful(0)
    by Anonymous, 5 Aug 14
    High CMRR
    This product has High CMRR and low supply voltage, very good!
    Was this Helpful?Helpful(0)
    by Prateek, 1 Jun 14
    AD8226 performance
    Excellent precision and CMRR. I replaced my previous design with a new design where i configured analog inputs in differential mode. I used AD8226 and solved severe noise challenges in industry.
    Was this Helpful?Helpful(0)
    by miomao, 13 Mar 14
    front end for WWVB 60 kHz and DCF 77.5 KHz
    Perhaps with an extension of range at least of 1.2 MHz may be, a more interesting device, useful in several sectors used like a low noise front end in precision amplifiers.
    Was this Helpful?Helpful(0)
    by Anand, 13 Mar 14
    INA with good CMRR
    it has good CMRR and low offset with high operating supply
    Was this Helpful?Helpful(0)
    by Anonymous, 6 Mar 14
    good performance
    high input power supply range, good performance that all match what I needs
    Was this Helpful?Helpful(0)
    by diablo248, 19 Feb 14
    Great OPamp
    It work great in measurement system. The datasheet is clearly written
    Was this Helpful?Helpful(0)
    by BrendanPFlynn, 23 Jan 14
    InAmp AD8226 - Great low-cost InAmp
    The AD8226 is a great fit for economic sensing. The response frequencies, CMRR, and wide tolerance range for inputs and supply voltage make it versatile. What would make this IC better? High ESD protection tolerances on inputs and lower output range overhead for low-voltage applications.
    Was this Helpful?Helpful(0)

    Sample & Buy

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    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.


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    Evaluation Boards Pricing displayed is based on 1-piece.
    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.