In the practical A/D converters, what are the distortions and time- related degradations occur during the conversion process?
A. Jitter errors
B. Droops
C. Nonlinear variations in the duration of the sampling aperture
D. All of the mentioned
Answer:A
In the practical A/D converters, what are the distortions and time- related degradations occur during the conversion process?
A. Jitter errors B. Droops C. Nonlinear variations in the duration of the sampling aperture D. All of the mentioned
Explanation: An ideal S/H introduces no distortion in the conversion process and is accurately modeled as an ideal sampler. However, time-related degradations such as errors in the periodicity of the sampling process ( “jitter”), nonlinear variations in the duration o f the sampling aperture, and changes in the voltage held during conversion ( “droop”) do occur in practical devices.