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
