Particularities of the Cyclic A/D Converters ENOB Definition and Measurement

Abstract

The paper is devoted to methods of accurate assessment of expected and real effective number of bits (ENOB) of cyclic A/D converters. There is discussed the equivalence of definition of ENOB in IEEE Standard 1241-2000 and analytical definition of ENOB used in our previous works. Generalization of ENOB definition is discussed, which enables its accurate application to analysis and testing of the cyclic and pipe-line ADCs performance. The indirect and direct methods of ENOB assessment are discussed. The results of the paper can be used for development of reliable procedures for analysis and testing of ADC performance.