Analog to digital convertor interface with 8051 microcontroller

Abstract

In this paper we shall study how a 8051 microcontroller is interfaced with an analog to digital convertor(ADC). An ADC is a real world device which converts real time continuous quantities into digital values that represent the amplitude of the quantity. An ADC converts input analog signals by quantizing it. Higher the sampling rate used to discretize the values more will be the accuracy with which the output from ADC is obtained. ADCs may be used in Digital Signal Processing, in commercial applications as well as in music industries to convert the data from analog to digital in order to create the data that will be used in compact disks. Further the circuit has been simulated using PROTEUS Demo version.