A DVCC-Based Current-Mode First-Order Universal Filter

Creative Commons License

Yücel F.

Journal of Circuits, Systems and Computers, vol.30, no.16, 2021 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 30 Issue: 16
  • Publication Date: 2021
  • Doi Number: 10.1142/s0218126621503059
  • Journal Name: Journal of Circuits, Systems and Computers
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Applied Science & Technology Source, Computer & Applied Sciences, INSPEC
  • Keywords: all-pass filter, Current-mode, DVCC, first-order, high-pass filter, low-pass filter, oscillator
  • Akdeniz University Affiliated: Yes

Abstract

© 2021 World Scientific Publishing CompanyA current-mode first-order filter configuration simultaneously providing noninverting and inverting low-pass (LP) and high-pass (HP) responses depending on passive element choice is proposed. In addition, all-pass filter (APF) responses can be easily obtained with interconnection of LP and HP output currents. The proposed filter employs only two differential voltage current conveyors, a grounded resistor and a grounded capacitor, so it is suitable for integrated circuit realization. It provides the feature of high output impedance. It does not need any passive element matching constraints. A voltage-mode oscillator based on the inverting APF is presented as a typical application. The performance of the proposed configuration is verified through many SPICE simulation and experimental test results.