AD7719BRUZ Datasheet PDF - ADI

●Product Details

●The AD7719 is a complete analog front-end for low frequency measurement applications. It contains two high-resolution sigma delta ADCs, switchable matched excitation current sources, low-side power switches, digital I/O port and temperature sensor. The 24-bit main channel with PGA accepts fully differential, unipolar and bipolar input signal ranges from REFIN1/128 to REFIN1. Signals can be converted directly from a transducer without the need for signal conditioning. The 16-bit aux channel does not have a PGA and has an input signal range of REFIN2 or REFIN2/2.

●### Features and Benefits

●HIGH RESOLUTION Σ-Δ ADCS

● 2 Independent ADCs (16- and 24-Bit Resolution)

● Factory-Calibrated (Field Calibration Not Required)

● Output Settles in 1 Conversion Cycle (Single Conversion Mode)

● Programmable Gain Front End

● Simultaneous Sampling and Conversion of 2 Signal Sources

● Separate Reference Inputs for Each Channel

● Simultaneous 50 Hz and 60 Hz Rejection at 20 Hz Update Rate

●ISOURCE SELECT™

● 24-Bit No Missing Codes—Main ADC

● 13-Bit p-p Resolution @ 20 Hz, 20 mV Range

● 18-Bit p-p Resolution @ 20 Hz, 2.56 V Range

●INTERFACE

● 3-Wire Serial

● SPI®, QSPI™, MICROWIRE™, and DSP Compatible

● Schmitt Trigger on SCLK