A 500MHz CMOS anti-alias filter using feed-forward opamps with local common-mode feedback

Jeffrey Harrison*, Neil Weste

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    64 Citations (Scopus)

    Abstract

    A 500MHz op-amp-RC filter in a 0.18μm CMOS process achieves an integrator signal swing of 1.73V pp for -40dB THD and thermal noise of 18nV/√Hz. A three-stage op-amp with two feed-forward paths and common-mode feedback local to each stage is used. The op-amp features 8GHz unity-gain frequency and 40dB gain at 500MHz.

    Original languageEnglish
    Article number7.4
    Pages (from-to)1-9
    Number of pages9
    JournalDigest of Technical Papers - IEEE International Solid-State Circuits Conference
    Publication statusPublished - 2003

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