AD7706 Datasheet (Analog Devices)

AD7706, Sigma-Delta ADCs

The AD7705/AD7706 are complete analog front ends for low frequency measurement applications.

These 2-/3-channel devices can accept low level input signals directly from a transducer and produce serial digital output.

The devices employ a Σ-Δ conversion technique to realize up to 16 bits of no missin

AD7706 Features

* AD7705: 2 fully differential input channel ADCs AD7706: 3 pseudo differential input channel ADCs 16 bits no missing codes 0.003% nonlinearity Programmable gain front end: gains from 1 to 128 3-wire serial interface SPI®-, QSPI™-, MICROWIRE™-, and DSP-compatible Schmitt-trigger input on SCLK Ability