An additional approach to model current followers and amplifiers with electronically controllable parameters from commercially available ICs

Sotner R., ÖZAKIN A., Jerabek J., Herencsar N., Dostal T., Vrba K.

Measurement Science Review, vol.12, no.6, pp.255-265, 2012 (SCI-Expanded) identifier

  • Publication Type: Article / Review
  • Volume: 12 Issue: 6
  • Publication Date: 2012
  • Doi Number: 10.2478/v10048-012-0035-4
  • Journal Name: Measurement Science Review
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.255-265
  • Keywords: Behavioral modeling, Current and voltage gain control, Current follower and amplifier, Intrinsic resistance
  • Yıldız Technical University Affiliated: Yes

Abstract

Several behavioral models of current active elements for experimental purposes are introduced in this paper. These models are based on commercially available devices. They are suitable for experimental tests of current- and mixed-mode filters, oscillators, and other circuits (employing current-mode active elements) frequently used in analog signal processing without necessity of on-chip fabrication of proper active element. Several methods of electronic control of intrinsic resistance in the proposed behavioral models are discussed. All predictions and theoretical assumptions are supported by simulations and experiments. This contribution helps to find a cheaper and more effective way to preliminary laboratory tests without expensive on-chip fabrication of special active elements.