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Radio Frequency Interference by Demodulation Mechanisms Present in Bipolar Operational Amplifiers

  • Muhammad Taher Abuelma'atti*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

A model is proposed for the input-voltage/output-voltage characteristics of bipolar active loaded common-emitter and differential pair amplifiers. Using this model, closed-form expressions are derived for the harmonic and intermodulation products resulting from a multisinusoidal excitation. Using these expressions, the radio frequency interference (RFI) demodulation in bipolar operational amplifiers, using active loaded common-emitter and differential pair amplifiers can be predicted. The results show that the finite values of the Early voltages in active loaded amplifiers play an important role in deciding the RFI demodulation performance of bipolar operational amplifiers.

Original languageEnglish
Pages (from-to)306-310
Number of pages5
JournalIEEE Transactions on Electromagnetic Compatibility
Volume37
Issue number2
DOIs
StatePublished - May 1995

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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