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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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Part# -3 dB BW (MHz) Minimum Gain (Acl) Voltage Supply (V) Supply Current Slew Rate (V/us) Distortion (2nd) (dBc) Distortion (3rd) (dBc) Package Price* (1000-4999)
AD6630 700 - +/- 5 30mA 3700 - - 16-Lead SOIC $4.18
AD8132 350 1 +/- 5 10.7mA 1200 -97 -100 8-Lead MSOP, 8-Lead SOIC $1.67
AD8137 110 1 +/- 6 3.6mA 450 -85 -85 8-Lead SOIC $1.10
AD8138 320 1 +/- 5 20mA 1500 -94 -114 8-Lead CSP, 8-Lead SOIC $3.75
AD8139 410 1 5 to 12 24.5mA 800 -90 -105 8-Lead CSP, 8-Lead SOIC $3.75
AD8350 900 - 4 to 11 28mA 2000 -66 -65 8-Lead SOIC/8-Lead uSOIC $2.52
AD8351 2200 1 3 to 5.5 28mA 13000 -79 -81 10-Lead uSOIC $2.68
AD8352 2200 - 3 to 5.5 37mA 11000 -83 -83 16-Lead LFCSP $3.53
ADA4922-1 38 1 +/- 12 9.4mA 730 -116 -109 - $3.63
ADA4927-1 2300 1 4.5 to 11 22.1mA 5000 -87 -89 16-Lead LFCSP $3.79
ADA4927-2 2300 1 4.5 to 11 22.1mA 5000 -87 -89 24-Lead LFCSP $6.29
ADA4932-1 560 1 3 to 11 9.6mA 410 -72 -80 16-Lead LFCSP $2.95
ADA4932-2 560 1 3 to 11 9.6mA 410 -72 -80 24-Lead LFCSP $5.29
ADA4937-1 1900 1 3 to 5.25 39.5mA 6000 -70 -84 16-Lead LFCSP $3.79
ADA4937-2 1900 1 3 to 5.25 42mA 6000 -77 -84 16-Lead LFCSP, 24-Lead LFCSP $5.69
ADA4938-1 1000 1 4.5 to 11 40mA 4700 -82 -82 16-Lead LFCSP, 24-Lead LFCSP $3.79
ADA4938-2 1000 1 4.5 to 11 36.5mA 4700 -82 -82 16-Lead LFCSP, 24-Lead LFCSP $5.69
ADA4939-1 1400 2 3 to 5 37.7mA 6800 -77 -95 16-Lead LFCSP $3.79
ADA4939-2 1400 2 3 to 5 37.7mA 6800 -77 -91 16-Lead LFCSP $5.69
ADA4941-1 30 2 - 2.3mA 22 -75 -71 8-Lead LFCSP, 8-Lead SOIC $2.42
ADA4950-1 750 1 3 to 11 9.5mA 2900 -80 -84 16-Lead LFCSP, 24-Lead LFCSP $2.99
ADA4950-2 750 1 3 to 11 9.5mA 2900 -80 -84 16-Lead LFCSP, 24-Lead LFCSP $5.29
ADL5561 2900 6 3.3 40mA 9800 -95 -87 16-Lead LFCSP $3.68
ADL5562 3300 6 3.3 80mA 9800 -104 -87 16-Lead LFCSP $3.68
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* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S. Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
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This is the acceptable operating range of the device. The various ranges specified are as follows:
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  • 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.