This document is AD7712 datasheet, which introduces the features of AD7712. AD7712 is a 24-bit single-channel analog input ADC chip supporting 2.5V and 5V power supply, with low power consumption (25mW typ) and high accuracy (±0.0015%).
The AD7712 is a complete analog front‑end for low‑frequency measurement applications. It offers two analog input channels (low‑level and high‑level), programmable gain from 1 to 128, and a sigma‑delta conversion technique that delivers up to 24 bits of no‑missing‑code resolution. The device can be controlled via a bidirectional serial interface, supports self‑calibration, system calibration, and background calibration, and operates from a single or dual supply.
The part is supplied in 24‑lead PDIP and 24‑lead SOIC packages, consumes as little as 100 µW in standby, and provides a 2.5 V reference output. Detailed specifications cover static performance, power requirements, pin functions, timing characteristics, and ordering information.
| Resolution (static performance) | 24 bits min |
|---|---|
| Programmable Gain Range | 1 to 128 |
| Power Dissipation (normal mode) | 45 mW max |
| Reference Output Voltage | 2.5 V nominal |
| Package Options | 24‑lead PDIP and 24‑lead SOIC |
The AD7712 provides up to 24 bits of no‑missing‑code resolution.