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ADC, or Analog-to-Digital Converter, is an electronic device or circuit that transforms continuous analog signals—such as sound, temperature, or light—into discrete digital values that computers and digital systems can process. ADCs are essential in bridging the physical world with digital systems, commonly found in sensors, audio equipment, medical devices, and microcontrollers. The quality of an ADC is determined by its resolution (number of bits) and sampling rate, which affect the accuracy and speed of the digital conversion.
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