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ADA4922-1:  HIGH VOLTAGE, DIFFERENTIAL 18-BIT ADC DRIVER

The ADA4922-1 is a differential driver for 16-bit to 18-bit ADCs that have input ranges up to ±10 V. Configured in an easy-to-use, single-ended-to-differential configuration, the ADA4922-1 requires no external components to drive ADCs. The ADA4922-1 provides essential benefits such as low distortion and high SNR that are required for driving ADCs with resolutions up to 18 bits.

With a wide ...More

ADA4922-1:  HIGH VOLTAGE, DIFFERENTIAL 18-BIT ADC DRIVER

Product Description

The ADA4922-1 is a differential driver for 16-bit to 18-bit ADCs that have input ranges up to ±10 V. Configured in an easy-to-use, single-ended-to-differential configuration, the ADA4922-1 requires no external components to drive ADCs. The ADA4922-1 provides essential benefits such as low distortion and high SNR that are required for driving ADCs with resolutions up to 18 bits.

With a wide supply voltage range (5 V to 26 V), rail-to-rail output, high input impedance, and fixed gain of +1 (single ended) or +2 (differential), the ADA4922-1 is designed to drive ADCs found in a variety of applications, including industrial instrumentation.

The ADA4922-1 is manufactured on ADI’s proprietary second-generation XFCB process that enables the amplifier to achieve excellent performance on high supply voltages.

The ADA4922-1 is available in an 8-lead 3 mm × 3 mm LFCSP package as well as an 8-lead SOIC package. Both packages are equipped with an exposed paddle for more efficient heat transfer. The ADA4922-1 is rated to work over the extended industrial temperature range, −40°C to +85°C.

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  • Single-ended-to-differential conversion
  • Excellent linearity (Vo, DIFF = 40 V p-p)
    120 dB THD at 5 kHz
    18-bit distortion to 50 kHz
  • Low differential output referred noise: 11 nV/√Hz
    114 dB SNR
  • Wide supply range: 5 V to 26 V
  • High input impedance
  • Fixed gain of +1 (single ended) or +2 (differential)
    No external components
  • High speed
    90 MHz, −3 dB bandwidth (G = +1)
  • Fast settling time
  • Rail-to-rail output
  • Disable
  • Available in space-saving thermally enhanced packages
    3 mm × 3 mm LFCSP
    8-lead SOIC_EP
  • -3 dB BW (MHz): 38MHz
  • Minimum Gain (Acl): 1
  • Supply Current : 9.4mA
  • Slew Rate (V/us): 730V/µs
  • Distortion (2nd) (dBc): -116dBc
  • Distortion (3rd) (dBc): -109dBc

Functional Block Diagram for ADA4922-1

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  • Commercial: 0 to +70 degrees Celsius
  • Military : -55 to +125 degrees Celsius
  • Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
  • Automotive: -40 to +125 degrees Celsius
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*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.
**Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.