The AD7490 is a 12-bit high speed, low power, 16-channel, successive-approximation ADC. The part operates from a single 2.7 V to 5.25 V power supply and features throughput rates up to 1 MSPS. The part contains a low noise, wide bandwidth tra
The AD7490 is a high‑speed, low‑power, 12‑bit successive‑approximation ADC that provides 16 single‑ended analog inputs and operates from a single 2.7 V to 5.25 V supply. It features a low‑noise track‑and‑hold amplifier, no pipeline delay, and a V DRIVE pin that allows direct interfacing to 3 V or 5 V logic.
Key specifications include a maximum sampling rate of 1 MSPS, power dissipation as low as 5.4 mW at 5 V, and a typical signal‑to‑noise ratio of 69.5 dB. The device supports SPI, QSPI, Microwire and other serial interfaces, and offers flexible clock‑speed management for various throughput‑power trade‑offs. This manual is written in Chinese.
| Resolution | 12 bits |
|---|---|
| Maximum Throughput Rate | 1 MSPS |
| Supply Voltage Range | 2.7 V to 5.25 V |
| Number of Analog Input Channels | 16 single‑ended |
The AD7490 can sample up to 1 MSPS.
It provides 16 single‑ended analog input channels.
It operates from 2.7 V to 5.25 V.