There exist many types of ADCs for different purposes like counter type, flash type, successive approximation type, etc. Analog to digital conversion becomes inevitable when these real-world signals need to be processed in a digital environment.ĪDC is the primary means by which an analog signal is converted into digital data that can be processed easily using a digital computer. Most of the real world signals around us are analog in nature. Analog to Digital ConvertersĪnalog signals are continuous time-varying signals. This chapter describes the functioning of an analog to digital converter using PIC18F4550. Analog to digital converters are electronic devices widely used in today’s digital world as most of the real-time signals are analog ones while the day-to-day devices of the contemporary world are mostly digital devices which can process only digital signals.
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