High-Q SC biquad with a minimum capacitor spread

G. Fischer, G. S. Moschytz

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


Realising SC biquads with high Q values normally results in a high capacitor spread. This means, for MOS circuits, a correspondingly large increase of the total chip area. In the letter, we describe a circuit that allows the realisation of high-Q filters with a minimum capacitor spread resulting in more accurate capacitor ratios and a small overall chip area.

Original languageEnglish
Pages (from-to)1087-1089
Number of pages3
JournalElectronics Letters
StatePublished - 9 Dec 1982
Externally publishedYes


  • Circuit theory and design
  • Switched-capacitor filters


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