Mismatch-Shaped Pseudo-Passive Two-Capacitor DAC

Jesper Steensgaard-Madsen, Un-Ku Moon, Gabor C. Temes

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    Abstract

    A simple mismatch-shaping scheme is proposed for a two-capacitor DAC. Unlike in other mismatch-shaping systems, the shaped error is generated by direct filtering of a well-defined bounded signal, which can be generated as white noise. The operation is closely related to a specific digital interpolation filter, but arbitrary properties of the overall interpolation characteristic can be assured.Simulations indicate that the scheme can be used for the realization of DACs with 16-bit linearity and SNR performance, with only 0.1% capacitance accuracy. The DAC is pseudo-passive, i.e. an active element is required only to buffer the output signal. Hence, it is potentially a very low-power circuit, suitable for portable applications.
    Original languageEnglish
    Title of host publicationProc. IEEE Alessandro Volta Memorial Workshop on Low-Power Design
    Place of PublicationLos Alamitos
    PublisherIEEE Computer Society Press
    Publication date1999
    Pages144-152
    ISBN (Print)0-7695-0019-6
    DOIs
    Publication statusPublished - 1999
    EventIEEE Alessandro Volta Memorial Workshop on Low-Power Design - Como
    Duration: 1 Jan 1999 → …

    Conference

    ConferenceIEEE Alessandro Volta Memorial Workshop on Low-Power Design
    CityComo
    Period01/01/1999 → …

    Bibliographical note

    Copyright 1999 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.

    Cite this

    Steensgaard-Madsen, J., Moon, U-K., & Temes, G. C. (1999). Mismatch-Shaped Pseudo-Passive Two-Capacitor DAC. In Proc. IEEE Alessandro Volta Memorial Workshop on Low-Power Design (pp. 144-152). IEEE Computer Society Press. https://doi.org/10.1109/LPD.1999.750415