Process for the conversion of a digital input signal of a predetermined number n of bits (b (I), the sign of exit analog digital converter to analog, and,Stage directed to a digital to analog converter.

摘要

D / a digital input signal encoded gray is performed according to an inventive recursive algorithm of converting code to analog of gray.According to the recursive algorithm, the gray code bits of the digital input are successively applied in the recursu00f5es algorithm, ualizau00e7u00e3o an intermediate signal.In each recursion.The intermediate signal is selectively inverted in dependence on the particular bit of code of gr of the intermediate signal is an inherent property of the algorithm of code to analog of gray.And it is a key factor to reduce the accumulation of errors in a conversion D / A. in an architecture of D / a converter based on the algorithm, the accumulation of errors of desvioseru00e1 low.In addition, the fact that the reversal of signal is digitally controlled allows implementations of high precision, besides improving the performance of the converter D / A.