●Product Details
●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.
●Applications
● High voltage data acquisition systems
● Industrial instrumentation
● Spectrum analysis
● ATE
● Medical instruments
●### 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
Part 3D Model
