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AD8656:  Low Noise, Precision CMOS Dual Amplifier

Product Details


The AD8655/AD8656 are the industry’s lowest noise, precision CMOS amplifiers. They leverage the Analog Devices DigiTrim® technology to achieve high dc accuracy.

The AD8655/AD8656 provide low noise (2.7 nV/√Hz at 10 kHz), low THD + N (0.0007%), and high precision performance (250 μV max over VCM) to low voltage applications. The ability to swing rail-to-rail at the input and output enables designers to buffer analog-to-digital converters (ADCs) and other wide dynamic range devices in single-supply systems.

The high precision performance of the AD8655/AD8656 improves the resolution and dynamic range in low voltage applications. Audio applications, such as microphone pre-amps and audio mixing consoles, benefit from the low noise, low distortion, and high output current capability of the AD8655/AD8656 to reduce system level noise performance and maintain audio fidelity. The high precision and rail-to-rail input and output of the AD8655/ AD8656 benefit data acquisition, process controls, and PLL filter applications.

The AD8655/AD8656 are fully specified over the −40°C to +125°C temperature range. The AD8655/AD8656 are available in Pb-free, 8-lead MSOP and SOIC packages. The AD8655/ AD8656 are both available for automotive applications.



Applications

  • ADC and DAC buffers
  • Audio
  • Industrial controls
  • Precision Filters
  • Digital Scales
  • Automotive collision avoidance
  • PLL filters
  • FEATURES and BENEFITS

    • Low Noise:
      2.7 nV/√rHz @ f = 10 kHz
    • Low offset voltage:
      250 μV max over Vcm
    • Low Distortion: 0.0008%
    • Offset voltage drift:
      0.4 μV/°C typ and 2.3 μV/°C max
    • Bandwidth: 28 MHz
    • Rail-to-rail Input/Output
    • Unity Gain Stable
    • 2.7 V to 5.5 V Operation
    • −40°C to +125°C Operation
    • Qualified for automotive applications

    Pin Configuration Diagram for AD8656

    AEC-Q100 Qualified

    A version of this product is AEC-Q100 qualified. View the complete list of Operational Amplifiers and References qualified for Automotive applications.

    Documentation

    Title Content Type File Type
    AD8655/AD8656: Low Noise, Precision CMOS Amplifier Data Sheet (Rev E, 10/2013) (pdf, 323 kB) Data Sheets PDF
    SAR ADC & Driver Quick-Match Guide  (pdf, 251 kB)
    Find drivers for ADI's most popular single-ended and differential SAR ADCs based on your specific application conditions.
    Product Selection Guide PDF
    ICs for Programmable Logic Control and Distributed Control Systems  (pdf, 976 kB)
    Analog Devices leadership in industrial IC technology, with the development of the iCMOS™ and iPolar™ processes, has uniquely defined high voltage and low voltage integration to deliver smaller, higher performance, and more cost effective ICs for industrial systems.
    Overview PDF
    RAQs index Rarely Asked Questions HTML
    Glossary of EE Terms Glossary HTML

    Design Tools,Models,Drivers & Software

    Title Content Type File Type
    AD8656 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

    AD8656 Model Options
    Model Package Pins Temp.
    Range
    Packing,
    Qty
    Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    AD8656ARMZ Status: Production 8 ld MSOP 8 Ind Tube, 50 $1.40 $1.11 Y  Material Info PCN Purchase Sample
    AD8656ARMZ-REEL Status: Production 8 ld MSOP 8 Ind Reel, 3000 $1.40 $1.11 Y  Material Info PCN Purchase
    AD8656ARZ Status: Production 8 ld SOIC 8 Ind Tube, 98 $1.40 $1.11 Y  Material Info PCN Purchase Sample
    AD8656ARZ-REEL Status: Production 8 ld MSOP 8 Ind Reel, 2500 - $1.11 Y  Material Info PCN Purchase
    AD8656ARZ-REEL7 Status: Production 8 ld SOIC 8 Ind Reel, 1000 - $1.11 Y  Material Info PCN Purchase
    AD8656WARMZ-REEL Status: Production 8 ld MSOP 8 Auto Reel, 3000 - $1.40 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

    View Sales and Distribution Offices

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