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ADA4938-2 - Ultra-Low Distortion Differential ADC Driver

Download the ADA4938-2 datasheet PDF. This datasheet also covers the ADA4938-1 variant, as both devices belong to the same ultra-low distortion differential adc driver family and are provided as variant models within a single manufacturer datasheet.

General Description

The ADA4938-1/ADA4938-2 are low noise, ultralow distortion, high speed differential amplifiers.

It is an ideal choice for driving high performance ADCs with resolutions up to 16 bits from dc to 27 MHz, or up to 12 bits from dc to 74 MHz.

Key Features

  • Extremely low harmonic distortion (HD).
  • 106 dBc HD2 @ 10 MHz.
  • 82 dBc HD2 @ 50 MHz.
  • 109 dBc HD3 @ 10 MHz.
  • 82 dBc HD3 @ 50 MHz Low input voltage noise: 2.6 nV/√Hz High speed.
  • 3 dB bandwidth of 1000 MHz, G = +1 Slew rate: 4700 V/μs 0.1 dB gain flatness to 150 MHz Fast overdrive recovery of 4 ns 1 mV typical offset voltage Externally adjustable gain Differential-to-differential or single-ended-to-differential operation Adjustable output common-mode voltage Wid.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (ADA4938-1_AnalogDevices.pdf) that lists specifications for multiple related part numbers.

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
Data Sheet FEATURES Extremely low harmonic distortion (HD) −106 dBc HD2 @ 10 MHz −82 dBc HD2 @ 50 MHz −109 dBc HD3 @ 10 MHz −82 dBc HD3 @ 50 MHz Low input voltage noise: 2.6 nV/√Hz High speed −3 dB bandwidth of 1000 MHz, G = +1 Slew rate: 4700 V/μs 0.