This product is a high voltage, differential 18-bit ADC driver. The product features include single-ended to differential conversion, low distortion, low differential output referred noise, high input impedance, fixed gain of 2, low output-referred offset voltage, low input bias current, wide supply range, high speed, fast settling time, and is available in space-saving, thermally enhanced packages.
The ADA4922-1 is a differential driver designed for 16‑bit to 18‑bit ADCs that require input ranges up to +20 V. It provides single‑ended‑to‑differential conversion with low distortion, high input impedance, and a fixed gain of 2, eliminating the need for external gain components.
The device operates from 5 V to 26 V, offers low supply current (≈10 mA at +12 V), and is available in 8‑lead LFCSP and SOIC packages with exposed pads for efficient heat dissipation. It is rated for industrial temperature ranges (‑40 °C to +85 °C) and includes a disable feature for power saving.
| Fixed Differential Gain | 2 |
|---|---|
| Input Resistance | 11 MΩ |
| Input Bias Current | 3.5 pA max |
| Operating Supply Voltage Range | 5 V to 26 V |
The ADA4922-1 has a fixed differential gain of 2.
It operates from 5 V up to 26 V.
The input resistance is specified as 11 MΩ.