AD/DA conversion

What is the brief spike-like error that appears at the output of a DA converter at the moment the input code changes?

  1. AJitter
  2. BOffset
  3. CGlitch
Show answer and explanation

Answer: C. Glitch

A glitch is a temporary disturbance of the output caused, for example, by slight timing differences between switches when several bits change at once. It tends to be largest near mid-scale codes where many bits change together (for example, from 0111… to 1000…), and it affects the performance of high-speed DACs.

Practice this topic Back to topic

More AD/DA conversion questions

  1. Which architecture runs several AD converters alternately with slightly staggered timing to achieve a high overall sampling rate?
  2. What is the main reason for placing a driver circuit, such as an op-amp, in front of a successive-approximation AD converter?
  3. Which architecture is used as the internal DAC in many successive-approximation AD converters?
  4. Which is a characteristic of a resistor-string DAC, which connects many resistors in series?
  5. Which AD converter architecture is classified as oversampling?