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ADA4627-1:  36 V, 19 MHz, Low Noise, Low Bias Current, JFET Op Amp

Product Details

Product Status:Recommended for New Designs

The ADA4627-1/ADA4637-1 are wide bandwidth precision amplifiers featuring low noise, very low offset, drift, and bias current. The parts operate from ±5 V to ±15 V dual supply.

The ADA4627-1/ADA4637-1 provide benefits previously found in few amplifiers. These amplifiers combine the best specifications of precision dc and high speed ac op amps. The ADA4637-1 is a decompensated version of the ADA4627-1 and is stable at a noise gain of 5 or greater.

With a typical offset voltage of only 70 μV, drift of less than 1 μV/°C, and noise of only 0.86 μV p-p (0.1 Hz to 10 Hz), the ADA4627-1/ADA4637-1 are suited for applications where error sources cannot be tolerated.

The ADA4627-1/ADA4637-1 are specified for both the industrial temperature range of −25°C to +85°C and the extended industrial temperature range of −40°C to +125°C. The ADA4627-1 is available in tiny 8-lead LFCSP and 8-lead SOIC packages, and the ADA4637-1 is available in tiny 8-lead SOIC packages.

The ADA4627-1/ADA4637-1 are members of a growing series of high speed, precision op amps offered by Analog Devices, Inc.

Applications
  • High impedance sensors
  • Photo diode amplifier
  • Precision instrumentation
  • Phase-locked loop filters
  • High end, professional audio
  • DAC output amplifier
  • ATE
  • Medical
  • FEATURES and BENEFITS

    • Low offset voltage: 200 μV maximum
    • Offset drift: 1 μV/°C typical
    • Very low input bias current: 5 pA maximum
    • Extended temperature range: −40ºC to +125ºC
    • ±5 V to ±15 V dual supply
    • ADA4627-1 GBW: 19 MHz
    • ADA4637-1 GBW: 79 MHz
    • See data sheet for additional information

    Pin Diagrams

    Documentation

    Title Content Type File Type
    ADA4627-1/ADA4637-1: 30 V, High Speed, Low Noise, Low Bias Current, JFET Operational Amplifier Data Sheet (Rev E, 01/2014) (pdf, 685 kB) Data Sheets PDF
    AN-931: Understanding PulSAR ADC Support Circuitry  (pdf, 299 kB)
    This application note discusses in general the pitfalls that occur regularly when using SAR ADCs and, more importantly, how to easily prevent them.
    Application Notes PDF
    AN-649: Using the Analog Devices Active Filter Design Tool  (pdf, 5301 kB) Application Notes PDF
    AN-581: Biasing and Decoupling Op Amps in Single Supply Applications  (pdf, 166 kB) Application Notes PDF
    AN-402: Replacing Output Clamping Op Amps with Input Clamping Amps  (pdf, 55 kB)
    So far most clamping amplifiers have relied upon an output clamping architecture and are called output clamp amps (OCAs). A new architecture called an input clamp amp (ICA) offers superior clamping accuracy and lower distortion.
    Application Notes PDF
    AN-417: Fast Rail-to-Rail Operational Amplifiers Ease Design Constraints in Low Voltage High Speed Systems  (pdf, 228 kB)
    Movement towards lower power supply voltages is driven by the demand that systems consume less and less power coupled with the desire to reduce the number of power supply voltages in the system. The following applications are discussed: Single-Ended and Differential Input ADC Input Circuits, Video Line Driver, Active Filter, HDSL Transceiver, and Transformer Drive Circuits.
    Application Notes PDF
    AN-202: An IC Amplifier User’s Guide to Decoupling, Grounding, and Making Things Go Right for a Change  (pdf, 76 kB) Application Notes PDF
    CN-0122: High Speed Instrumentation Amplifier Using the AD8271 Difference Amplifier and the ADA4627-1 JFET Input Op Amp  (pdf, 159 kB) Circuit Note PDF
    MT-052: Op Amp Noise Figure: Don't Be Misled  (pdf, 60 kB) Tutorials PDF
    MT-047: Op Amp Noise  (pdf, 72 kB) Tutorials 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
    RAQs index Rarely Asked Questions HTML
    Glossary of EE Terms Glossary HTML

    Design Tools,Models,Drivers & Software

    Title Content Type File Type
    ADA4627 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

    ADA4627-1 Model Options
    Model Package Pins Temp.
    Range
    Packing,
    Qty
    Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    ADA4627-1ACPZ-R2 Status: Production 8 ld LFCSP (3x3mm) 8 Ind Reel, 250 $5.08 $5.08 Y  Material Info PCN Purchase
    ADA4627-1ACPZ-R7 Status: Production 8 ld LFCSP (3x3mm) 8 Ind Reel, 1500 - $3.47 Y  Material Info PCN Purchase Sample
    ADA4627-1ACPZ-RL Status: Production 8 ld LFCSP (3x3mm) 8 Ind Reel, 5000 - $3.47 Y  Material Info PCN Purchase
    ADA4627-1ARZ Status: Production 8 ld SOIC 8 Ind Tube, 98 $3.78 $3.47 Y  Material Info PCN Purchase Sample
    ADA4627-1ARZ-R7 Status: Production 8 ld SOIC 8 Ind Reel, 1000 - $3.47 Y  Material Info PCN Purchase
    ADA4627-1ARZ-RL Status: Production 8 ld SOIC 8 Ind Reel, 2500 - $3.47 Y  Material Info PCN Purchase
    ADA4627-1BRZ Status: Production 8 ld SOIC 8 Ind Tube, 98 $5.21 $4.78 Y  Material Info PCN Purchase Sample
    ADA4627-1BRZ-R7 Status: Production 8 ld SOIC 8 Ind Reel, 1000 - $4.78 Y  Material Info PCN Purchase
    ADA4627-1BRZ-RL Status: Production 8 ld SOIC 8 Ind Reel, 2500 - $4.78 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-1 Evaluation Board
    Model Description Price RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    EVAL-PRAOPAMP-1KSZ Status: Production Single KS-5 lead SC70 Evaluation Board $20.19 Yes -
    EVAL-PRAOPAMP-1RJZ Status: Production Single RJ-5 lead SOT23 Evaluation Board $20.19 Yes -
    EVAL-PRAOPAMP-1RMZ Status: Production Single RM-8 lead MSOP Evaluation Board $20.19 Yes -
    EVAL-PRAOPAMP-1RZ Status: Production Single 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.

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