The common-base differential amplifier and applications revisited

B. J. Maundy*, Serdar Ozoguz, A. S. Elwakil, S. J.G. Gift

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


In this paper, the common-base (or -gate) differential amplifier is revisited and presented. A variant of the same amplifier is also presented and both are analyzed using standard two-port network analysis. Their high frequency behavior, differences in biasing details and noise analysis are also compared and contrasted. New differential input-output filters are derived for the common-base (or -gate) differential amplifier as well as a new low impedance Norton amplifier. Simulations using Spectre in a 90 nm UMC CMOS process of several of the filters as well as experiments conducted using discrete transistors confirm the theoretical results.

Original languageEnglish
Pages (from-to)8-19
Number of pages12
JournalMicroelectronics Journal
Publication statusPublished - 1 May 2017

Bibliographical note

Publisher Copyright:
© 2017 Elsevier Ltd


  • Circuit theory
  • Differential amplifiers
  • Filters
  • Operational transresistance amplifier


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