the ad7710 is a 24-bit no missing codes analog front end with 2-channel programmable gain front end, low-pass filter, bidirectional microcontroller serial interface, internal/external reference option, etc. it can be widely used in weighing scales, thermocouples, process control, smart transmitters, chromatography and other fields.
The AD7710 is a complete analog front‑end for low‑frequency measurement applications. It accepts low‑level signals directly from strain gauges or transducers and outputs a serial digital word using sigma‑delta conversion. The device features a programmable‑gain front end, two differential analog inputs, a differential reference input, and a bidirectional serial interface for configuration and calibration.
The part operates from a single 5 V to 10 V supply (or dual‑supply) with typical power dissipation of 25 mW in normal mode and 7 mW in power‑down. It is offered in 24‑lead DIP and SOIC packages and includes on‑chip self‑calibration, background calibration, and a 2.5 V reference output.
| Resolution | 24 bits, no missing codes |
|---|---|
| Typical Power Consumption (Normal Mode) | 25 mW |
| Input Common‑Mode Rejection | 100 dB min at DC (AVDD = 5 V) |
| Reference Output Voltage | 2.5 V |
| Operating Temperature (Commercial) | -40 °C to +85 °C |
| Operating Temperature (Extended) | -55 °C to +125 °C |
The AD7710 provides 24‑bit resolution with no missing codes.
Typical power consumption is 25 mW in normal mode.
The input common‑mode rejection is at least 100 dB at DC when AVDD is 5 V.
It operates from –40 °C to +85 °C for the commercial version and from –55 °C to +125 °C for the extended version.