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AD8667:  Low Noise, Precision 16 V CMOS R-R Dual Amplifier

Product Details


Newer Alternatives:
  • AD8657 or AD8546 for low power applications requiring fully RRIO 18 V amplifiers

The AD866x are rail-to-rail output amplifiers that use the Analog Devices, Inc., patented DigiTrim® trimming technique to achieve low offset voltage. The AD866x feature an extended operating range with supply voltages up to 16 V. They also feature low input bias current, low input offset voltage, and low current noise.

The combination of low offset, very low input bias current, and a wide supply range makes these amplifiers useful in a wide variety of applications usually associated with higher priced JFET amplifiers. Systems using high impedance sensors, such as photodiodes, benefit from the combination of low input bias current, low noise, low offset, and wide bandwidth.

The ability to operate the device for single (5 V to 16 V) or dual supplies (±2.5 V to ±8 V) supports many applications. The rail-to-rail outputs provide increased dynamic range to drive low frequency data converters. The low bias current drift is well suited for precision I-to-V converters. The combination of precision offset, offset drift, and low noise also make the op amps ideal for gain, dc offset adjust, and active filter in both instrumentation and medical applications. These low power op amps can be used in IR thermometers, pH and ORP instruments, pressure transducer front ends, and other sensor signal conditioning circuits that are used in remote or wireless applications.

The AD8663/AD8667/AD8669 are specified over the extended industrial temperature range of −40°C to +125°C. The single AD8663 is available in a narrow 8-lead SOIC package and a very thin, 8-lead LFCSP. The dual AD8667 is available in a narrow 8-lead SOIC package and an 8-lead MSOP. The quad AD8669 is available in a 14-lead SOIC and 14-lead small TSSOP.

Applications

  • Sensor front ends
  • Transimpedance amps
  • Electrometer applications
  • Photodiode amplification
  • Low power ADC drivers
  • Medical diagnostic instruments
  • pH and ORP meters and probes
  • DAC or REF buffers
  • Data Sheet, Rev. B, 1/08

    FEATURES and BENEFITS

    • Low offset voltage: 175 μV maximum @ VSY = 5 V
    • Low supply current: 275 μA maximum per amplifier
    • Single-supply operation: 5 V to 16 V
    • Low noise: 23 nV/√Hz
    • Low input bias current: 300 fA
    • Unity-gain stable
    • Small packages available
      3 mm × 3 mm
      8-lead LFCSP
      8-lead MSOP
    • Other packages
      8-lead SOIC
      14-lead SOIC
      14-lead TSSOP

    Pin Configuration Diagram for AD8667

    Documentation

    Title Content Type File Type
    AD8663/AD8667/AD8669: Low Noise, Precision, 16 V, CMOS, Rail-to-Rail Operational Amplifiers Data Sheet (Rev C, 04/2013) (pdf, 1207 kB) Data Sheets PDF
    AN-849: Using Op Amps as Comparators  (pdf, 117 kB) Application Notes PDF
    Printed Circuit Board Design (PCB) Issues  (pdf) Design Handbooks PDF
    RAQs index Rarely Asked Questions HTML
    Glossary of EE Terms Glossary HTML

    Design Tools,Models,Drivers & Software

    Title Content Type File Type
    AD8667 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

    AD8667 Model Options
    Model Package Pins Temp.
    Range
    Packing,
    Qty
    Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    AD8667ARMZ Status: Production 8 ld MSOP 8 Ind Tube, 50 $1.92 $1.69 Y  Material Info PCN Purchase Sample
    AD8667ARMZ-REEL Status: Production 8 ld MSOP 8 Ind Reel, 3000 $1.92 $1.69 Y  Material Info PCN Purchase
    AD8667ARZ Status: Production 8 ld SOIC 8 Ind Tube, 98 $1.92 $1.58 Y  Material Info PCN Purchase Sample
    AD8667ARZ-REEL Status: Production 8 ld SOIC 8 Ind Reel, 2500 $1.92 $1.58 Y  Material Info PCN Purchase
    AD8667ARZ-REEL7 Status: Production 8 ld SOIC 8 Ind Reel, 1000 $1.92 $1.58 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.

    EVAL-OPAMP-2 Evaluation Board
    Model Description Price RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    EVAL-PRAOPAMP-2CPZ Status: Production Dual CP-8 lead LFCSP Evaluation Board $20.19 Yes -
    EVAL-PRAOPAMP-2RMZ Status: Production Dual RM-8 lead MSOP Evaluation Board $20.19 Yes -
    EVAL-PRAOPAMP-2RZ Status: Production Dual R-8 lead SOIC Evaluation Board $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.

    Check Inventory & Purchase

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