Analog-To-Digital and Digital-To-Analog Conversion

[ahlam1399]

In order for analog devices (e.g., speakers, temperature sensors, strain gauges, position sensors, light meters, etc.) to communicate with digital circuits in a manner that goes beyond simple threshold triggering, we use an analog-to-digital converter (ADC). An ADC converts an analog signal into a series of binary numbers, each number being proportional to the analog level measured at a given moment. Typically, the digital words generated by the ADC are fed into a microprocessor or micro controller, where they can be processed, stored, interpreted, and manipulated.

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