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Which of the following samples the analog signals to obtain their digital equivalent?

Which of the following samples the analog signals to obtain their digital equivalent? Correct Answer Analog to digital converter

Analog to digital converter samples the analog signals to obtain their digital equivalent. There are different types of analog to digital converters.

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A method for representing digital data analog signals by changing the phase of the analog carrier to represent the digital information is known as
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In general, a digital system designer has better control of tolerances in a digital signal processing system than an analog system designer who is designing an equivalent analog system.
Digital camera signals transfer all analog signals into digital pulses.
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The computers that we use are digital whereas we live in an analog world which means that we have to translate analog data into digital data. What is the name of the circuit which helps us in this conversion?