This paper attempted a novel approach for system-level modeling and simulation of sigma-delta modulator for low-frequency CMOS integrated analog to digital interfaces. Comparative analysis of various architectures topologies, circuit implementation techniques are described with analytical procedure for effective selection of topologies for targeted specifications.

    Design/methodology/approach

    Virtual instruments are presented in labview environment to analyze the correlation of circuit-level non-ideal effects with key design parameters over sampling ratio, coarse quantizer bits and loop filter order. A fourth-order single-loop sigma-delta modulator is designed and verified in MATLAB simulink environment with careful selection of integrator weights to meet stable desired performance.

    Findings

    The proposed designed achieved SNDR of 122 dB and 20 bit resolution satisfying high-resolution requirements of low-frequency biomedical signal processing applications. Even though the simulation performed at behavioral level, the results obtained are considered as accurate, by including all non-ideal and non-linear circuit errors in simulation process.

    Originality/value

    Virtual instruments using labview environment used to analyze the correlation of circuit-level non-ideal effects with key design parameters over sampling ratio, coarse quantizer bits and loop filter order for accurate design.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A novel system-level modeling and design approach for high performance single-loop sigma-delta (∑Δ) modulators


    Additional title:

    Novel High performance single loop ΣΔ modulator




    Publication date :

    2021-10-19


    Size :

    13 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





    SIGMA-DELTA ANALOGUE TO DIGITAL CONVERTER

    BRULE SIMON / CASSAGNES THIERRY DOMINIQUE YVES / SANDREZ PASCAL et al. | European Patent Office | 2021

    Free access

    Asynchronous fiber-optic delta-sigma modulator

    Reeves, E. / Costanzo-Caso, P. / Siahmakoun, A. | IEEE | 2011


    Program Level Design for Six Sigma

    Judd, Thomas C. | SAE Technical Papers | 2005


    Program Level Design for Six Sigma

    Judd, T. C. / Society of Automotive Engineers | British Library Conference Proceedings | 2005