Common-mode gain reduction technique and its applications

Nawatt Silawan, Nicodimus Retdian, Shigetaka Takagi

Research output: Contribution to journalArticle

Abstract

This paper proposes a common-mode gain reduction technique and a new approach for a balanced-type system design. Two design examples of a balanced-type operational transconductance amplifier and a balanced-type filter are given. The proposed scheme employs the proposed common-mode gain reduction technique together with the common-mode feedback (CMFB) network, which is used only to set a bias, to meet requirements of common-mode rejection. Compared with the conventional method, which uses the CMFB that has a higher gain than the one used in the proposed scheme, the proposed method shows reduction in design complexities and relaxation of the stability conditions.

Original languageEnglish
Pages (from-to)74-80
Number of pages7
JournalIEEJ Transactions on Electrical and Electronic Engineering
Volume7
Issue number1
DOIs
Publication statusPublished - 2012 Jan

Keywords

  • Balanced-type system
  • Common-mode feedback (CMFB)
  • Filter
  • Operational transconductance amplifier (OTA)

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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