AD7266 is a dual 12-bit high precision low power SAR ADC with 3 differential inputs and 12 single-ended inputs, the sampling rate is 2MSPS, and it can use SPI/QSPI/MICROWIRE/DSP compatible high-speed serial interface to read data.
The AD7266 is a dual, 12‑bit, 3‑channel successive‑approximation ADC that operates from a single 2.7 V to 5.25 V supply. It offers configurable analog inputs (12 single‑ended or 6 differential channels) and a high‑speed serial interface (SPI/QSPI/MICROWIRE/DSP‑compatible). The device includes an on‑chip 2.5 V reference and supports both internal and external reference configurations.
Key specifications include a maximum throughput of 2 MSPS, power consumption as low as 9 mW at 1.5 MSPS (3 V) and 27 mW at 2 MSPS (5 V), 71 dB minimum SNR, and input ranges of 0 V to VREF or 0 V to 2 × VREF. The part is available in 32‑lead LFCSP and TQFP packages and operates from –40 °C to +125 °C.
| Throughput Rate | 2 MSPS max |
|---|---|
| Signal‑to‑Noise Ratio | 71 dB min |
| Analog Input Range (single‑ended) | 0 V to VREF |
| Supply Voltage (VDD) | 2.7 V to 5.25 V |
The AD7266 can sample at up to 2 MSPS.
The device includes an on‑chip 2.5 V reference with ±0.2 % tolerance.