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

Jeffrey Harrison; Neil Weste

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 journal › Article › peer-review

71 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 language	English
Article number	7.4
Pages (from-to)	1-9
Number of pages	9
Journal	Digest of Technical Papers - IEEE International Solid-State Circuits Conference
Publication status	Published - 2003

Cite this

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

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.",

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AB - 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.

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

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