The AD7322 is a 2‑channel, 12‑bit plus sign successive‑approximation ADC that supports true bipolar input signals. It offers four software‑selectable input ranges (+10 V, +5 V, +2.5 V, and 0 V to +10 V) and can be configured for single‑ended, true differential, or pseudo‑differential operation. The device includes an internal 2.5 V reference, low‑power operation (21 mW), and a high‑speed serial interface capable of up to 1 MSPS throughput.
The datasheet provides detailed specifications, timing diagrams, absolute maximum ratings, and ESD handling guidelines. Power‑down modes, conversion timing, and pin configurations are also described for designers integrating the AD7322 into mixed‑signal systems.
| Resolution | 13 bits |
|---|---|
| Throughput Rate | 1 MSPS |
| Full Power Bandwidth | 22 MHz |
| Power Consumption (Normal Mode) | 21 mW |
| Input Voltage Ranges | +10 V, +5 V, +2.5 V, 0 V to +10 V |
The AD7322 provides four software‑selectable input ranges: +10 V, +5 V, +2.5 V, and 0 V to +10 V.
The device can sample at up to 1 MSPS.
In normal mode the AD7322 consumes about 21 mW.