Logarithmic converter based on a transconductance feedback amplifier

Muhammad Al-Gahtani*, Brett Wilson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

This paper demonstrates how the problem of significantly reduced logarithmic converter bandwidth at lower signal levels may be almost entirely eliminated by direct substitution of a transconductance feedback amplifier (TFA) in place of the standard voltage operational amplifier (VOA). Taking advantage of the constant loop-gain mode of operation of a TFA permits virtually constant bandwidth to be obtained throughout the log converter's full input signal range.

Original languageEnglish
Pages (from-to)4/1-4/4
JournalIEE Colloquium (Digest)
Issue number119
StatePublished - 2000
Externally publishedYes

ASJC Scopus subject areas

  • General Engineering
  • Electrical and Electronic Engineering

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