The AD7992 is a 12-bit, low power, successive approximation ADC with an I2C-compatible interface. The part operates from a single 2.7 V to 5.5 V power supply and features a 2 µs conver- sion time. The part contains a 2-channel multiplexer and track- and-hold integrator, which can be used to measure a variety of analog input signals.
The AD7992 is a 12‑bit successive‑approximation ADC offering two single‑ended analog input channels and a wide operating voltage range (2.7 V to 5.5 V). It features an I²C‑compatible serial interface with standard, fast, and high‑speed modes, and includes programmable limit registers with an ALERT output.
The device operates with very low power consumption, entering a shutdown mode of 1 µA max when idle, and supports automatic conversion cycles, one‑shot and continuous conversion rates, and external reference inputs for maximum dynamic range.
| Resolution | 12‑bit |
|---|---|
| Throughput Rate | up to 188 kSPS |
| Operating Temperature Range | -40 °C to +125 °C |
| Shutdown Current | 1 µA max at 3 V |
Two versions allow up to five I²C addresses on the same bus.
The device can sample at up to 188 kSPS.