and distortion. Those imperfections reduce the number of bits of accuracy. The ENOB describes the effective resolution of a real converter in terms of the number of bits an ideal converter with the same resolution would have.

ENOB is also used as a quality measure for other blocks such as sample-and-hold amplifiers. Thus, analog blocks may be included in signal-chain calculations. The total ENOB of a chain of blocks is usually less than the ENOB of