Question

differentiate between ADC and DAC​

Answer 1

A DAC essentially does the opposite of an ADC, converting digital inputs to analog output signals. The analog signals are generated at the sampling frequency applied to the DAC clock. As with an ADC, the key spectral-performance parameters for a DAC include SNR and SFDR.

ADCs sample continuous analog signals over an input voltage range and convert them into digital representations (words) with resolution equal to the ADC's number of bits. ... DACs convert digital input code into analog output signals, essentially providing the opposite function of an ADC.