MODELING OF ANALOG-TO-DIGITAL SIGNAL CONVERTERS FOR SENSOR MICROSYSTEMS IN THE MICROWIND SOFTWARE

Abstract

For the results of simulating the operation of analog-digital converters, we chose such a converter as the serial approximation ADC (SAR ADC). A sequential approximation ADC is a type of analog-to-digital converter that converts a continuous analog waveform to a discrete digital representation by binary search through all possible quantization levels before finally converging on a digital output for each conversion. There are three important blocks in the SAR ADC architecture: the sample and hold circuit (Sample and Hold, S/H), the comparator, and the SAR block. The topology and principle of operation of which was modeled in the Micro Wind software environment.