The AD7927 is a 12-bit high speed low power 8-channel successive approximation ADC. It operates from a single 2.7V to 5.25V power supply and features throughput rates up to 200 kSPS. The part contains a low noise, wide bandwidth analog front end, supports single-ended inputs, and has 8 input channels.
The AD7927 is a high‑speed, low‑power, 12‑bit successive‑approximation ADC with eight single‑ended inputs and a channel sequencer. It operates from a single 2.7 V to 5.25 V supply and provides up to 200 kSPS throughput.
The device includes a flexible serial interface (SPI, QSPI, Microwire), shutdown modes for power saving, and is qualified for automotive applications. Detailed specifications, pin descriptions, timing diagrams, and ordering information are provided in the document.
| Resolution | 12 Bits |
|---|---|
| Throughput Rate | 200 kSPS max |
| Supply Voltage (AVpp) | 2.7 V to 5.25 V |
| Power Dissipation (3 V) | 3.6 mW max |
| Power Dissipation (5 V) | 75 mW max (operational), 25 pW max (full shutdown) |
| Conversion Time | 800 ns max (16 SCLK cycles at 20 MHz) |
| SINAD | ≥ 70 dB |
| Shutdown Current | 0.5 µA max (full shutdown) |
The AD7927 can sample up to 200 kSPS.
It operates from a single supply of 2.7 V to 5.25 V.
A conversion can be completed in as little as 800 ns, which corresponds to 16 SCLK cycles at 20 MHz.
The device draws a maximum of 0.5 µA in full shutdown.