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OP481:  Ultralow Power, Rail-to-Rail Output Operational Amplifier (Quad)

Product Status:Production
Data
Sheet
OP481 Data Sheet Rev D, 09/2008 (pdf 390kB)

Product Details

Product Status:Production
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The OP281 and OP481 are dual and quad ultralow power single-supply amplifiers featuring rail-to-rail outputs. Each operates from supplies as low as 2.0 V and is specified at +3 V and +5 V single supplies as well as ±5 V dual supplies.

Fabricated on Analog Devices’ CBCMOS process, the OP281/OP481 feature a precision bipolar input and an output that swings to within millivolts of the supplies, continuing to sink or source current up to a voltage equal to the supply voltage.

Applications for these amplifiers include safety monitoring, portable equipment, battery and power supply control, and signal conditioning and interfacing for transducers in very low power systems.

The output’s ability to swing rail-to-rail and not increase supply current when the output is driven to a supply voltage enables the OP281/OP481 to be used as comparators in very low power systems. This is enhanced by their fast saturation recovery time. Propagation delays are 250 μs.

The OP281/OP481 are specified over the extended industrial temperature range (−40°C to +85°C). The OP281 dual amplifier is available in 8-lead SOIC surface-mount and TSSOP packages. The OP481 quad amplifier is available in narrow 14-lead SOIC and TSSOP packages.

Applications

  • Comparator
  • Battery-powered instrumentation
  • Safety monitoring
  • Remote sensors
  • Low voltage strain gage amplifiers

    • Data Sheet, Rev. C, 10/07

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    Product Updates: Notify Me

    FEATURES and BENEFITS

    • Low supply current: 4 μA/amplifier maximum
    • Single-supply operation: 2.7 V to 12 V
    • Wide input voltage range
    • Rail-to-rail output swing
    • Low offset voltage: 1.5 mV
    • No phase reversal

    Pin Configuration Diagram for OP481

    OP481 Diagram

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    Documentation

    Title Content Type File Type
    OP281/OP481: Ultralow Power, Rail-to-Rail Output Operational Amplifiers Data Sheet  (Rev D, 09/2008) (pdf, 390 kB) Data Sheets PDF
    AN-649: Using the Analog Devices Active Filter Design Tool  (pdf, 5301 kB) Application Notes PDF
    RAQs index Rarely Asked Questions HTML
    Glossary of EE Terms Glossary HTML

    Design Tools,Models,Drivers & Software

    Title Content Type File Type
    OP481 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.

    SampleSample & Buy

    Price, packaging, availability

    OP481 Model Options
    Model Package Pins Temp.
    Range         		Packing,
    Qty         		Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    OP481GRUZ-REEL Status: Production 14 ld TSSOP 14 Ind Reel, 2500 - $3.75 Y  Material Info PCN Purchase
    OP481GS-REEL Status: Production 14 ld SOIC 14 Ind Reel, 2500 - $4.13 N  Material Info PCN Purchase
    OP481GSZ Status: Production 14 ld SOIC 14 Ind Tube, 56 $3.85 $3.65 Y  Material Info PCN Purchase
    OP481GSZ-REEL Status: Production 14 ld SOIC 14 Ind Reel, 2500 - $3.65 Y  Material Info PCN Purchase
    OP481GSZ-REEL7 Status: Production 14 ld SOIC 14 Ind Reel, 1000 - $3.65 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.

    PRAOPAMP Evaluation Board
    Model Description Price RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    EVAL-PRAOPAMP-1KSZ Status: Production Single 5 Lead SC70 (KS-5) Eval Board $20.19 Yes -
    EVAL-PRAOPAMP-1RJZ Status: Production Single 5-Lead SOT 23 (RJ-5) Eval Board $20.19 Yes -
    EVAL-PRAOPAMP-1RMZ Status: Production Single 8 Lead MSOP (RM-8) Eval Board $20.19 Yes -
    EVAL-PRAOPAMP-1RZ Status: Production Single 8-Lead SOIC (R-8) Eval Board $20.19 Yes -
    EVAL-PRAOPAMP-2RMZ Status: Production Dual 8-Lead MSOP (RM-8) Eval Board $20.19 Yes -
    EVAL-PRAOPAMP-2RZ Status: Production Dual 8-Lead SOIC (R-8) Eval Board $20.19 Yes -
    EVAL-PRAOPAMP-4RUZ Status: Production Quad 14-Lead TSSOP (RU-14) $20.19 Yes -
    EVAL-PRAOPAMP-4RZ Status: Production Quad 14-Lead SOIC (R-14) $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.

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