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 conversion time. The part contains a 2-channel multiplexer and track-and-hold circuit, which can convert two single-ended analog input channels to digital outputs. The AD7992's conversion time, input range, power consumption, and speed make it ideal for a variety of applications that require high accuracy and fast conversion, including instrumentation, data acquisition, medical devices, and industrial measurement.
The AD7992 is a 12‑bit successive‑approximation ADC that provides two single‑ended analog input channels. It operates from a single 2.7 V to 5.5 V supply and uses a 10‑lead MSOP package. The device features an I²C‑compatible serial interface with pin‑selectable addresses and supports standard, fast, and high‑speed modes.
Typical performance includes a 2 µs typical conversion time, up to 188 kSPS throughput, and an automatic shutdown mode that reduces power consumption to about 1 pA when idle. The part includes programmable limit registers with an ALERT output, and it requires an external reference of 1.2 V to Vop for full input range.
| Resolution | 12 bits |
|---|---|
| Conversion time | 2 µs typ |
| Throughput rate | up to 188 kSPS |
| Power‑down current (interface inactive) | 1 pA max |
| Input voltage range | 0 to REFin |
| Operating temperature range | -40 °C to +125 °C |
| Package | 10‑lead MSOP |
The AD7992 has a typical conversion time of 2 µs.
It provides two single‑ended analog input channels.
The device can achieve up to 188 kSPS throughput.
The power‑down current is about 1 pA (maximum).