In the field of electronic circuit design, data converters are components that convert information from analog domain to the digital domain or vice versa. The conversion from analog to digital is done by what is called an ADC (Analog-to-Digital Converter) or A/D (pronounced A to D) and the conversion from digital to analog is done by what is called a DAC (Digital-to-Analog converter) or D/A (pronounced D to A). An analog or analogue signal is an allergy continuous in both time and amplitude. ... A digital system is one that uses discrete values (often electrical voltages), especially those representable as binary numbers, or non-numeric symbols such as letters or icons, for input, processing, transmission, storage, or display, rather than a continuous spectrum of values (ie, as in an analog system). ...

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