Question

In the practical A/D converters, if the differences between transition values are not all equal or uniformly changing, then such error is known as?

(a) Scale-factor error

(b) Offset error

(c) Linearity error

(d) All of the mentioned

This question was addressed to me during an online interview.

My question comes from Quantization and Coding in section Sampling and Reconstruction of Signals of Digital Signal Processing

Answer 1

Correct answer is (c) Linearity error

To explain: We note that practical A/D converters, linearity error (the differences between transition values are not all equal or uniformly changing).