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ADA4922-1:  High Voltage, Differential 18-Bit ADC Driver

Product Details


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.

FEATURES and BENEFITS

  • 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

Functional Block Diagram for ADA4922-1

Documentation

Title Content Type File Type
ADA4922-1: High Voltage, Differential 18-Bit ADC Driver Data Sheet (Rev 0, 11/2005) (pdf, 418 kB) Data Sheets PDF
AN-1026: High Speed Differential ADC Driver Design Considerations  (pdf, 355 kB) Application Notes PDF
MT-218: Multiple Feedback Band-Pass Design Example  (pdf, 0) Tutorials PDF
A Stress-Free Method for Choosing High-Speed Op Amps
A decision-tree approach to making the critical decision about high-speed op amp selection, including a look at some helpful tools.
Webcasts WEBCAST
UG-130: Differential Amplifier Evaluation Board for 8-lead SOIC and MSOP Packages  (pdf, 493 kB) User Guides PDF
Amplifiers for Video Distribution  (pdf, 115 kB) Product Selection Guide PDF
High Speed Amplifiers Selection Table  (pdf, 77 kB) 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
ADA4922-1 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.

SampleSample & Buy

Price, packaging, availability

ADA4922-1 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADA4922-1ACPZ-R2 Status: Production 8 ld LFCSP (3x3mm) 8 Ind Reel, 250 $4.52 $4.52 Y  Material Info PCN Purchase
ADA4922-1ACPZ-RL Status: Last Time Buy 8 ld LFCSP (3x3mm) 8 Ind Reel, 5000 - - Y  Material Info PCN/PDN Purchase
ADA4922-1ACPZ-RL7 Status: Production 8 ld LFCSP (3x3mm) 8 Ind Reel, 1500 - $3.63 Y  Material Info PCN Purchase Sample
ADA4922-1ARDZ Status: Production 8 ld SOIC-EP 8 Ind Tube, 98 $3.93 $3.63 Y  Material Info PCN Purchase Sample
ADA4922-1ARDZ-R7 Status: Last Time Buy 8 ld SOIC-EP 8 Ind Reel, 1000 - $3.63 Y  Material Info PCN/PDN Purchase
ADA4922-1ARDZ-RL Status: Production 8 ld SOIC-EP 8 Ind Reel, 2500 - $3.63 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.

ADA4922-1 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADA4922-1ACP-EBZ Status: Production 8-lead LFCSP Bare Evaluation Board $18.25 Yes -
ADA4922-1ACPZ-RL7 Status: Production 8-Lead LFCSP - Yes -
ADA4922-1ARD-EBZ Status: Production 8-Lead SOT-23 Bare Evaluation Board $18.25 Yes -
ADA4922-1ARDZ Status: Production 8-Lead SOIC $4.54 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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