Nonlinearities in SC Delta-Sigma A/D Converters

Jesper Steensgaard-Madsen

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    The effects of using nonlinear low-gain opamps in switched-capacitor delta-sigma modulators are analyzed. Using unconventional topologies, the state variables are made essentially uncorrelated with the input signal, hence opamp nonlinearity will cause very little harmonic distortion. Nonlinearity errors, which are uncorrelated with the input, are called non-harmonic distortion. Using a correlated-double-sampling integrator, the non-harmonic distortion can be reduced to a level where other errors dominate
    Original languageEnglish
    Title of host publicationElectronics, Circuits and Systems, 1998 IEEE International Conference on
    Publication date1998
    ISBN (Print)0-7803-5008-1
    Publication statusPublished - 1998
    Event1998 IEEE 5th International Conference on Electronics, Circuits and Systems - Lisboa, Portugal
    Duration: 7 Sept 199810 Sept 1998
    Conference number: 5


    Conference1998 IEEE 5th International Conference on Electronics, Circuits and Systems
    Internet address

    Bibliographical note

    Copyright: 1998 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE


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