Integrated Switched-Capacitor Low-Pass Filter with Combined Anti-Aliasing Decimation Filter for Low Frequencies

Daniel C. von Grunigen, Rainer Sigg, Michael Ludwig, Urs W. Brugger, George S. Moschytz, Hans Melchior

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

A new combined anti-aliasing decimation filter is presented which allows the implementation of a low-frequency switched-capacitor filter on a single chip. Experimental results are presented for a CMOS second-order low-pass filter with 1 dB passband ripple, a cutoff frequency of 2 Hz, and a dynamic range of 84 dB. The decimation filter converts the input clock of 16 kHz into an output clock of 250 Hz. The integrated anti-aliasing filter has a low pole frequency of about 3 kHz.

Original languageEnglish
Pages (from-to)1024-1029
Number of pages6
JournalIEEE Journal of Solid-State Circuits
Volume17
Issue number6
DOIs
StatePublished - Dec 1982
Externally publishedYes

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