A Novel Logarithmic Amplifier with Second Generation Current Conveyors

İstanbullu M., Avcı M.

4th International Conference on Engineering Technologies, Konya, Turkey, 19 - 21 November 2020, pp.1, (Full Text)

  • Publication Type: Conference Paper / Full Text
  • City: Konya
  • Country: Turkey
  • Page Numbers: pp.1
  • Çukurova University Affiliated: Yes

Abstract

This study presents the design and the complete analysis of a novel logarithmic amplifier using second-generation current conveyors. The circuit utilizes exponential current-voltage characteristics of a pn-diode to obtain the logarithm of the input signal. Unlike the opamp-based logarithmic amplifiers, the proposed design does not suffer from instability since the active component in the feedback loop. The simulation results show that the logarithmic behaviour of the design could be used in various applications.