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Why is this Important?

Most real world signals of interest such as voices, light power levels, etc. are analog in nature. It is, of course, immensely important to read/load such data into computers for monitoring, processing, storing, and transmission which requires the analog information to be first converted into its digital equivalent. An Analog to Digital Converter accomplishes this task. One can purchase a complete ADC that is integrated into a single IC but it is also important to know how these useful devices work.

Project Overview

The goal of this project was to build an Analog to Digital Convertor (ADC) capable of converting an analog voltage into a digital (binary) representation. The components making up the ADC were a trigger pulse generator, short pulse rectifier, clock pulse generator, counter, voltage ramp generator, voltage comparator, and control logic. These components can be seen in the images below.

Circuit Schematic

Built Circuit

How it Works

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