AD7983 is a 16-bit, 1.33 MSPS PulSAR ADC with no missing codes, low power dissipation, high precision, wide input range and single-supply operation.
The AD7983 is a 16‑bit successive‑approximation analog‑to‑digital converter designed for low‑power, high‑speed applications. It operates from a single 2.5 V supply, supports 1.8 V‑5 V logic levels, and offers a serial SPI‑compatible interface that can be daisy‑chained.
Typical applications include battery‑powered equipment, communications, data acquisition, and medical instruments. The device is offered in 10‑lead MSOP and 10‑lead QFN (LFCSP) packages and operates over a temperature range of –40 °C to +85 °C.
| Resolution | 16 bits |
|---|---|
| Power Dissipation | 10.5 mW typical @ 1.33 MSPS |
| Analog Input Voltage Range | 0 V to VREF |
| Reference Voltage Range | 2.9 V to 5.1 V |
| Operating Temperature | –40 °C to +85 °C |
| Digital Interface | SPI‑compatible (SPI/QSPI/MICROWIRE/DSP) |
| Package Options | 10‑lead MSOP and 10‑lead QFN (LFCSP) |
It uses a 2.5 V VDD supply and a VIO range of 1.8 V to 5.5 V.
Yes, the serial interface supports daisy‑chaining several ADCs on a single 3‑wire bus.
The analog inputs accept a differential range from 0 V up to the reference voltage (VREF).