Novel transimpedance type first-order all-pass filter using single OTRA


ÇAM U., Cakir C., Cicekoglu O.

AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS, vol.58, no.4, pp.296-298, 2004 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 58 Issue: 4
  • Publication Date: 2004
  • Doi Number: 10.1078/1434-8411-54100246
  • Journal Name: AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.296-298
  • Keywords: all-pass filter, operational transresistance amplifiers, analog integrated circuits, OPERATIONAL TRANSRESISTANCE AMPLIFIER, CURRENT CONVEYOR, CONFIGURATION
  • Dokuz Eylül University Affiliated: Yes

Abstract

A novel transimpedance-mode first-order all-pass filter configuration is proposed. It uses a single operational transresistance amplifier (OTRA) and few passive components. The proposed circuit is structurally all-pass that does not impose any component matching condition. The proposed circuit is insensitive to parasitic input capacitances and input resistances due to the internally grounded input terminals of the OTRA. It provides an alternative realization of phase equalizers for analog signal processing applications by providing also current-to-voltage conversion. The theoretical results are verified with PSPICE simulations using a CMOS realization of OTRA.