AD7790BRM-REEL Datasheet PDF - ADI

●GENERAL DESCRIPTION

●The AD7790 is a low power, complete analog front end for low frequency measurement applications. It contains a low noise 16-bit ∑-Δ ADC with one differential input that can be buffered or unbuffered along with a digital PGA, which allows gains of 1, 2, 4, and 8.

●FEATURES

●Power

●  Supply: 2.5 V to 5.25 V operation

●  Normal: 75 μA maximum

●  Power-down: 1 μA maximum

●RMS noise: 1.1 μV at 9.5 Hz update rate

●16-bit p-p resolution

●Integral nonlinearity: 3.5 ppm typical

●Simultaneous 50 Hz and 60 Hz rejection

●Internal clock oscillator

●Programmable gain amplifier

●Rail-to-rail input buffer

●VDD monitor channel

●Temperature range: –40°C to +105°C

●10-lead MSOP

●INTERFACE

●3-wire serial

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

●Schmitt trigger on SCLK

●APPLICATIONS

●Smart transmitters

●Battery applications

●Portable instrumentation

●Sensor measurement

●Temperature measurement

●Pressure measurement

●Weigh scales

●4 to 20 mA loops