ADA4922-1ARDZ

GENERAL DESCRIPTION

The ADA4922-1 is a differential driver for 16-bit to 18-bit 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.

FEATURES

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 max
Low input bias current: 3.5 μA max
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 @ 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
3 mm × 3 mm LFCSP
8-lead SOIC_EP
Low supply current: IS = 10 mA on ±12 V supplies

APPLICATIONS

High voltage data acquisition systems
Industrial instrumentation
Spectrum analysis
ATE
Medical instruments