Mathematical and computer models in multi-pass ADC design and optimization

The paper presents a mathematically grounded approach to the analysis and optimisation of multi-pass analogue-to-digital converters (MADCs) with the algorithmic forming the estimates of converted samples. The approach enables a comprehensive analysis of the converter work using a virtual model of MADC built on the basis of its mathematical model. This model is based on the extended optimal identification algorithms [2-4] adapted to the particularities of A/D conversion. The obtained sub-optimal algorithms take into account all main parameters of the internal auxiliary ADC and other analogue elements of MADC. The results of advanced simulations confirm a full agreement of theoretical and experimental evaluations, as well as efficiency of the proposed approach as a tool for MADC design support