A 12-bit 3.7-msample/s pipelined A/D converter based on the novel capacitor mismatch calibration technique

Shuaiqi Wang, Fule Li, Yasuaki Inoue

    Research output: Contribution to journalArticle

    1 Citation (Scopus)

    Abstract

    This paper proposes a 12-bit 3.7-MS/s pipelined A/D Converter based on the novel capacitor mismatch calibration technique. The conventional stage is improved to an algorithmic circuit involving charge summing, capacitors' exchange and charge redistribution, simply through introducing some extra switches into the analog circuit. This proposed ADC obtains the linearity beyond the accuracy of the capacitor match and verifies the validity of reducing the nonlinear error from the capacitor mismatch to the second order without additional power dissipation through the novel capacitor mismatch calibration technique. It is processed in 0.5 μm CMOS technology. The transistor-level simulation results show that 72.6 dB SNDR, 78.5 dB SFDR are obtained for a 2 V Vpp 159.144 kHz sine input sampled at 3.7 MS/s. The whole power dissipation of this ADC is 33.4 mW at the power supply of 5 V.

    Original languageEnglish
    Pages (from-to)2465-2474
    Number of pages10
    JournalIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
    VolumeE91-A
    Issue number9
    DOIs
    Publication statusPublished - 2008 Sep

    Keywords

    • A/D conversion
    • Capacitor mismatch calibration
    • Low power dissipation
    • Pipelined

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Computer Graphics and Computer-Aided Design
    • Applied Mathematics
    • Signal Processing

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