The AD7321 is a high-performance, low-power, 2-channel, software-selectable, 12-bit plus-sign SAR ADC with ±10 V, ±5 V, ±2.5 V, 0 V to +10 V true bipolar input ranges.
The AD7321 is a 2‑channel, 12‑bit plus sign SAR ADC offering true bipolar input ranges and software‑selectable voltage ranges (+10 V, +5 V, +2.5 V, 0 V‑10 V). It features a high‑speed serial interface capable of up to 500 kSPS throughput, low power consumption (17 mW), and a 14‑lead TSSOP package.
Key specifications include a full‑power bandwidth of 22 MHz, an internal 2.5 V reference, and extensive timing and absolute‑maximum ratings to support robust system designs. The device supports single‑ended, true differential, and pseudo‑differential input configurations, making it suitable for a wide range of analog‑to‑digital conversion applications.
| Resolution | 13 bits |
|---|---|
| Throughput rate | 500 kSPS |
| Power consumption | 17 mW |
| Full‑power bandwidth | 22 MHz |
| Input voltage ranges | +10 V, +5 V, +2.5 V, 0 V‑10 V |
| Internal reference | 2.5 V |
| Package | 14‑lead TSSOP |
The AD7321 can operate at a maximum throughput rate of 500 kSPS.
It provides two analog input channels with a channel sequencer.
The device offers four software‑selectable ranges: +10 V, +5 V, +2.5 V, and 0 V‑10 V.
At the maximum 500 kSPS throughput, the AD7321 consumes about 17 mW.