AD8630

Zero Drift, Single-Supply, Rail-to-Rail Quad Op Amp
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Product Details

This amplifier has ultralow offset, drift, and bias current. The AD8628/AD8629/AD8630 are wide bandwidth auto-zero amplifiers featuring rail-to-rail input and output swing and low noise. Operation is fully specified from 2.7 V to 5 V single supply (±1.35 V to ±2.5 V dual supply).

The AD8628/AD8629/AD8630 provide benefits previously found only in expensive auto-zeroing or chopper-stabilized amplifiers. Using Analog Devices, Inc., topology, these zero-drift amplifiers combine low cost with high accuracy and low noise. No external capacitor is required. In addition, the AD8628/ AD8629/AD8630 greatly reduce the digital switching noise found in most chopper-stabilized amplifiers.

With an offset voltage of only 1 μV, drift of less than 0.005 μV/°C, and noise of only 0.5 μV p-p (0 Hz to 10 Hz), the AD8628/ AD8629/AD8630 are suited for applications where error sources cannot be tolerated. Position and pressure sensors, medical equipment, and strain gage amplifiers benefit greatly from nearly zero drift over their operating temperature range. Many systems can take advantage of the rail-to-rail input and output swings provided by the AD8628/AD8629/AD8630 to reduce input biasing complexity and maximize SNR.

The AD8628/AD8629/AD8630 are specified for the extended industrial temperature range (−40°C to +125°C). The AD8628 is available in tiny 5-lead TSOT, 5-lead SOT-23, and 8-lead narrow SOIC plastic packages. The AD8629 is available in the standard 8-lead narrow SOIC and MSOP plastic packages. The AD8630 quad amplifier is available in 14-lead narrow SOIC and 14-lead TSSOP plastic packages. See the Ordering Guide for automotive grades.

Applications

  • Automotive sensors
  • Pressure and position sensors
  • Strain gage amplifiers
  • Medical instrumentation
  • Thermocouple amplifiers
  • Precision current sensing
  • Photodiode amplifiers
  • Data Sheet, Rev. H, 4/2010

    Product Lifecycle

    checked 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

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    Product Details

    The Universal Precision Op Amp Evaluation Boards has been designed and optimized for many circuit configurations allowing the users to best suit their applications. These boards are all RoHs Compliant. See references below on what board to order by lead count and package.

    • EVAL-PRAOPAMP-4RUZ (Quad 14-Lead TSSOP) RU-14
    • EVAL-PRAOPAMP-4RZ (Quad 14-Lead SOIC) R-14

    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.

    AD8630 Material Declaration
    PCN-PDN Information Quality And Reliability Symbols and Footprints

    Reviews

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    Overview

    3 Reviews
    3 out of 3 (100%) customers recommend this product.
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    Most Helpful Review

    by MTech
    According datasheet operational amplifier AD8630 has very low offset voltage 1-5 uV. But from our experience of use of this chip offset voltage even is lower - usually 0.5-1 uV. So we use AD8630 in precision devices, such as photodiode amplifiers for measuring of optical density of solutions. Also we plan to use AD8630 in our new project - the electrochemical analyzer by anodic stripping voltammetry.

    Most Recent Review

    by plamk
    I developed an very stable oscilatior controller in experimental physics research. After comparison of most used comparable OPA devices from 3 competitors, i found that AD8630 shows the best performance in my application.

    All Reviews

    by plamk, 8 May 14
    AD8630 Shows the best performance in my application
    I developed an very stable oscilatior controller in experimental physics research. After comparison of most used comparable OPA devices from 3 competitors, i found that AD8630 shows the best performance in my application.
    Was this Helpful?Helpful(0)
    by aviadevices, 11 Feb 14
    Quality product.
    Quality product. Low noise, low power consumption.
    Was this Helpful?Helpful(0)
    by MTech, 15 Jan 14
    AD8630 - nice choice of operational amplifier!
    According datasheet operational amplifier AD8630 has very low offset voltage 1-5 uV. But from our experience of use of this chip offset voltage even is lower - usually 0.5-1 uV. So we use AD8630 in precision devices, such as photodiode amplifiers for measuring of optical density of solutions. Also we plan to use AD8630 in our new project - the electrochemical analyzer by anodic stripping voltammetry.
    Was this Helpful?Helpful(0)

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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.


    Price Table Help

     
    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.