The AD7982 is an 18-bit, 1 MSPS, low-power ADC from Analog Devices, available in MSOP and QFN packages. The AD7982 has 18-bit resolution, no missing codes, low power consumption, and is suitable for battery-powered equipment, data acquisition systems, medical instruments, and seismic data acquisition systems.
The AD7982 is an 18‑bit successive‑approximation ADC that operates from a single 2.5 V supply and delivers up to 1 MSPS conversion rate. It features low power consumption (7 mW at full speed), a true differential input range of ±VREF, and a dynamic range of 99 dB.
The document includes detailed electrical specifications, timing diagrams, absolute maximum ratings, pin‑out tables, layout recommendations, and ordering information. It also provides application hints for PCB design and links to the evaluation board (EVAL‑AD7982CBZ).
| Resolution | 18 bits |
|---|---|
| Maximum conversion rate | 1 MSPS |
| Power dissipation at 1 MSPS | 7.0 mW |
| Dynamic range | 99 dB |
| Power Supply Rejection Ratio | 90 dB |
The AD7982 provides an 18‑bit resolution.
The ADC can sample at up to 1 MSPS.
It dissipates about 7.0 mW when operating at 1 MSPS.