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AD8227:  Wide Supply Range, Rail-to-Rail Output Instrumentation Amplifier

Product Details

Product Status:Recommended for New Designs

The AD8227 is a low cost, wide supply range instrumentation amplifier that requires only one external resistor to set any gain between 5 and 1000. The AD8227 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 can also go below the negative supply, small signals near ground can be amplified without requiring dual supplies. The AD8227 operates on supplies ranging from ±1.5 V to ±18 V (2.2 V to 36 V single supply).

The robust AD8227 inputs are designed to connect to real-world sensors. In addition to its wide operating range, the AD8227 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 AD8227 is ideal for multichannel, space-constrained applications. With its MSOP package and 125°C temperature rating, the AD8227 thrives in tightly packed, zero airflow designs.

The AD8227 is available in 8-pin MSOP and SOIC packages. It is fully specified for −40°C to +125°C operation.

For a similar instrumentation amplifier with a gain range of 1 to 1000, see the AD8226.


Applications
  • Industrial process controls
  • Bridge amplifiers
  • Medical instrumentation
  • Portable data acquisition
  • Multichannel systems
  • FEATURES and BENEFITS

    • Gain set with 1 external resistor
      Gain range: 5 to 1000
    • Input voltage goes below ground
    • Inputs protected beyond supplies
    • Very wide power supply range
      Single supply: 2.2 V to 36 V
      Dual supply: ±1.5 V to ±18 V
    • Bandwidth (G = 5): 250 kHz
    • CMRR (G = 5): 100 dB minimum (B Grade)
    • Input noise: 24 nV/√Hz
    • Typical supply current: 350 μA
    • Specified temperature: −40°C to +125°C
    • 8-lead SOIC and MSOP packages

    Pin Configuration for AD8227

    Design Tools,Models,Drivers & Software

    Title Content Type File Type
    AD8227 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

    AD8227 Model Options
    Model Package Pins Temp.
    Range
    Packing,
    Qty
    Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    AD8227ARMZ Status: Production 8 ld MSOP 8 Ind Tube, 50 $1.24 $1.04 Y  Material Info PCN Purchase Sample
    AD8227ARMZ-R7 Status: Production 8 ld MSOP 8 Ind Reel, 1000 - $1.04 Y  Material Info PCN Purchase
    AD8227ARMZ-RL Status: Production 8 ld MSOP 8 Ind Reel, 3000 - $1.04 Y  Material Info PCN Purchase
    AD8227ARZ Status: Production 8 ld SOIC 8 Ind Tube, 98 $1.24 $1.04 Y  Material Info PCN Purchase Sample
    AD8227ARZ-R7 Status: Production 8 ld SOIC 8 Ind Reel, 1000 - $1.04 Y  Material Info PCN Purchase
    AD8227ARZ-RL Status: Production 8 ld SOIC 8 Ind Reel, 2500 - $1.04 Y  Material Info PCN Purchase
    AD8227BRMZ Status: Production 8 ld MSOP 8 Ind Tube, 50 $2.06 $1.73 Y  Material Info PCN Purchase
    AD8227BRMZ-R7 Status: Production 8 ld MSOP 8 Ind Reel, 1000 - $1.73 Y  Material Info PCN Purchase
    AD8227BRMZ-RL Status: Production 8 ld MSOP 8 Ind Reel, 3000 - $1.73 Y  Material Info PCN Purchase
    AD8227BRZ Status: Production 8 ld SOIC 8 Ind Tube, 98 $2.06 $1.73 Y  Material Info PCN Purchase
    AD8227BRZ-R7 Status: Production 8 ld SOIC 8 Ind Reel, 1000 - $1.73 Y  Material Info PCN Purchase
    AD8227BRZ-RL Status: Production 8 ld SOIC 8 Ind Reel, 2500 - $1.73 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.

    AD62x, AD822x, AD842x Series InAmp Evaluation Board
    Model Description Price RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    EVAL-INAMP-62RZ Status: Production AD620/621/AD622/623/627/AD8223 SOIC Eval Board $40.23 Yes -
    EVAL-INAMP-ICF-RMZ Status: Production AD8420/AD8237 MSOP Eval Board $34.58 Yes -
    EVAL-INAMP-82RMZ Status: Production AD8220/8221/8226/8227/8228/8236/8421/8422 MSOP Eval Board $34.49 Yes -
    EVAL-INAMP-82RZ Status: Production AD8221/8226/8227/8228/8229/8421/8422/8428/8429 SOIC Eval Board $34.49 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.

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