The AD7357 is a differential input, dual-channel, simultaneous sampling 14-bit SAR ADC with a throughput rate of 4.2 MSPS per channel. It features low power dissipation, high-speed serial interface, and is qualified for automotive applications.
The AD7357 is a dual, 14‑bit successive‑approximation ADC that operates from a single 2.5 V supply and provides up to 4.2 MSPS per channel. It features a fully differential input stage, an on‑chip 2.048 V reference and a high‑speed serial interface compatible with SPI, QSPI, Microwire and DSP protocols.
The device is supplied in a 16‑lead thin‑shrink small‑outline package (TSSOP) and is qualified for automotive applications, with an operating temperature range from –40 °C to +125 °C for the Y and WY variants. Detailed specifications, pin descriptions, timing diagrams and layout recommendations are provided throughout the document.
| Throughput rate | 4.2 MSPS per channel |
|---|---|
| Power dissipation | 36 mW at 4.2 MSPS |
| Operating temperature range | –40 °C to +125 °C (Y and WY grades) |
| Package | 16‑lead TSSOP |
| On‑chip reference voltage | 2.048 V ±0.25 % (6 ppm/°C) |
| Fully differential input range | Vcm + Vref/2 |
The AD7357 can sample up to 4.2 MSPS per channel.
It dissipates 36 mW when operating at 4.2 MSPS.
The Y and WY versions are rated from –40 °C to +125 °C.
The device includes a 2.048 V reference with ±0.25 % accuracy.