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ADA4937-1:  Ultralow Distortion Differential ADC Driver (Single)

Product Details

The ADA4937-x is a low noise, ultralow distortion, high speed differential amplifier. It is an ideal choice for driving high performance ADCs with resolutions up to 16 bits from dc to 100 MHz. The adjustable level of the output common mode allows the ADA4937-x to match the input of the ADC. The internal common-mode feedback loop also provides exceptional output balance as well as suppression of even-order harmonic distortion products.

With the ADA4937-x, differential gain configurations are easily realized with a simple external feedback network of four resis-tors that determine the closed-loop gain of the amplifier.

The ADA4937-x is fabricated using Analog Devices, Inc., proprie-tary silicon-germanium (SiGe), complementary bipolar process, enabling it to achieve very low levels of distortion with an input voltage noise of only 2.2 nV/√Hz. The low dc offset and excellent dynamic performance of the ADA4937-x make it well-suited for a wide variety of data acquisition and signal processing applications.

The ADA4937-x is available in a Pb-free, 3 mm × 3 mm, 16-lead LFCSP (ADA4937-1, single) or a Pb-free, 4 mm × 4 mm, 24-lead LFCSP (ADA4937-2, dual). The pinout has been optimized to facilitate PCB layout and minimize distortion. The ADA4937-x is specified to operate over the automotive (−40°C to +105°C) temperature range and between 3.3 V and 5 V supplies.


  • ADC drivers
  • Single-ended-to-differential converters
  • IF and baseband gain blocks
  • Differential buffers
  • Line drivers

    • Extremely low harmonic distortion
      −112 dBc HD2 @ 10 MHz
      −84 dBc HD2 @ 70 MHz
      −77 dBc HD2 @ 100 MHz
      −102 dBc HD3 @ 10 MHz
      −91 dBc HD3 @ 70 MHz
      −84 dBc HD3 @ 100 MHz
    • High speed
      −3 dB bandwidth of 1.9 GHz,
      G = 1
      Slew rate: 6000 V/μs, 25% to 75%
      Fast overdrive recovery of 1 ns
    • Low input voltage noise: 2.2 nV/√Hz
    • 0.5 mV typical offset voltage
    • Externally adjustable gain
    • Differential-to-differential or single-ended-to-differential operation
    • Adjustable output common-mode voltage
    • Single-supply operation: 3.3 V to 5 V

    Functional Block Diagram for ADA4937-1

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    Price, packaging, availability

    ADA4937-1 Model Options
    Model Package Pins Temp.
    Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
    ADA4937-1YCPZ-R2 Status: Production 16 ld LFCSP (3x3mm, 1.3mm exposed pad) 16 Ind Reel, 250 $4.70 $4.70 Y  Material Info PCN Purchase
    ADA4937-1YCPZ-R7 Status: Production 16 ld LFCSP (3x3mm, 1.3mm exposed pad) 16 Ind Reel, 1500 - $3.79 Y  Material Info PCN Purchase Sample
    ADA4937-1YCPZ-RL Status: Production 16 ld LFCSP (3x3mm, 1.3mm exposed pad) 16 Ind Reel, 5000 - $3.79 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.

    ADA4937-1 Evaluation Board
    Model Description Price RoHS View PCN/ PDN Check Inventory/
    ADA4937-1YCP-EBZ Status: Production 16-Lead LFCSP Bare Evaluation Board $18.25 Yes -
    ADA4937-1YCPZ-R7 Status: Production 16-Lead LFCSP - 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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