Distortion and its suppression in low-power delta-sigma modulator

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    1 Citation (Scopus)

    Abstract

    In this paper, effects of amplifier distortion in DT sigma-delta modulator are discussed. A second order modulator with single-bit quantizer is modeled and dead-zone effect of ring amplifiers in integrators is simulated by using MATLAB. For the evaluation of dead-zone effect on modulator distortion, test chip was fabricated in 65nm CMOS. SNDR of 62dB and 1MHz signal bandwidth was experimentally demonstrated at sampling frequency of 102.4MHz and power consumption of 1mW.

    Original languageEnglish
    Title of host publication2017 IEEE 60th International Midwest Symposium on Circuits and Systems, MWSCAS 2017
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages452-455
    Number of pages4
    Volume2017-August
    ISBN (Electronic)9781509063895
    DOIs
    Publication statusPublished - 2017 Sep 27
    Event60th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2017 - Boston, United States
    Duration: 2017 Aug 62017 Aug 9

    Other

    Other60th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2017
    CountryUnited States
    CityBoston
    Period17/8/617/8/9

    Keywords

    • ADC
    • Dead-zone
    • Delta sigma
    • Distortion
    • Nonlinear
    • Ring amplifier

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Electrical and Electronic Engineering

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  • Cite this

    Ishikuro, H. (2017). Distortion and its suppression in low-power delta-sigma modulator. In 2017 IEEE 60th International Midwest Symposium on Circuits and Systems, MWSCAS 2017 (Vol. 2017-August, pp. 452-455). [8052957] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/MWSCAS.2017.8052957