Features and Benefits
- Single-ended-to-differential conversion
- Low distortion (VO, dm = 40 V p-p)
- −99 dBc HD at 100 kHz
- Low differential output referred noise: 12 nV/√Hz
- High input impedance: 11 MΩ
- Fixed gain of 2
- No external gain components required
- Low output-referred offset voltage: 1.1 mV maximum
- Low input bias current: 3.5 μA maximum
- Wide supply range
- 5 V to 26 V
- Can produce differential output signals in excess of 40 V p-p
- High speed
- 38 MHz, −3 dB bandwidth at 0.2 V p-p differential output
- Fast settling time
- 200 ns to 0.01% for 12 V step on ±5 V supplies
- Disable feature
- Available in space-saving, thermally enhanced packages
- 8-lead, 3 mm × 3 mm LFCSP
- 8-lead SOIC
- Low supply current: IS = 10 mA on ±12 V supplies
The ADA4922-1 is a differential driver for 16-bit to 18-bit analog-to-digital converters (ADCs) that have differential input ranges up to ±20 V. Configured as an easy-to-use, single-ended-to-differential amplifier, 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), high input impedance, and fixed differential gain of 2, the ADA4922-1 is designed to drive ADCs found to in a variety of applications, including industrial instrumentation.
The ADA4922-1 is manufactured on Analog Devices, Inc., proprietary, second-generation XFCB process that enables the amplifier to achieve excellent noise and distortion performance on high supply voltages.
The ADA4922-1 is available in an 8-lead 3 mm × 3 mm LFCSP 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.
- High voltage data acquisition systems
- Industrial instrumentation
- Spectrum analysis
- Medical instruments
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
The Universal Differential Amplifier Evaluation Boards can be used to evaluate single, high speed, fully differential amplifiers. The evaluation boards are bare boards that enable users to quickly prototype a variety of differential or single-ended circuits, which minimizes risk and reduces time to market. These boards are all RoHs Compliant. See references below on what board to order by lead count and package.
Tools & Simulations
Rarely Asked Questions (1)
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
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