AD/DA conversion

Which correctly describes "sampling" in AD conversion?

  1. ARounding the signal amplitude to discrete values
  2. BTaking the value of a continuous signal at regular time intervals
  3. CRemoving noise from the signal
Show answer and explanation

Answer: B. Taking the value of a continuous signal at regular time intervals

Sampling means taking values from a time-continuous signal at regular intervals. Rounding those values to discrete steps is called quantization. AD conversion consists of these two processes: sampling and quantization.

  • A. Rounding values to discrete steps is quantization.
  • B. Correct. It takes values at regular time intervals.
  • C. Removing noise is the job of a filter.
Practice this topic Back to topic

More AD/DA conversion questions

  1. What is the error caused by quantization in AD conversion called?
  2. What is the sampling frequency of a music CD?
  3. Which correctly describes the integral nonlinearity (INL) of an AD converter?
  4. Which correctly describes the gain error of an AD converter?
  5. What does it mean for a DA converter to be monotonic?