Convertisseur analogique-numerique

Abstract

Reliability of an a-dconverter, operating with a p-code of Fibonacci, is ensured by (k-1) amplifiers with their outputs connected to inputs of the analog commutator of a multi-threshold comparator. The input of the (i+1)-th amplifier is fed by the i-th amplifier and the first input of the first amplifier is connected to the first input of the analog commutator acting as the input of the a-d converter. With the first input of the analog commutator connected to the converter input , its output feeds the multi-threshold comparator which provides the conversion of the analog quantity into a parallel unitary code. The latter is again converted into a sequential code by converter operating the digital commutator of the reversible counter and also connected to counter of the code analyser and convolution/devolution block.; The latter minimises the Fibonacci code and feeds the converter which is linked to the second input of the first amplifier. The block is also connected to the convolution detector of the register which is connected to code analyser and comparator.