A 22.5 MHz current-mode KHN-biquad using differential voltage current conveyor and grounded passive elements


Ibrahim M., Minaei S., Kuntman H.

AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS, cilt.59, ss.311-318, 2005 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 59 Konu: 5
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1016/j.aeue.2004.11.027
  • Dergi Adı: AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
  • Sayfa Sayıları: ss.311-318

Özet

In this paper, a current-mode (CM) Kerwin-Huelsman-Newcomb (KHN) biquad is proposed. The circuit employs three differential-voltage current conveyors (DVCCs) as active elements together with two capacitors and four resistors as passive elements, which all are grounded. The circuit simultaneously provides the three basic filter functions, namely bandpass (BP), highpass (HP) and lowpass (LP) functions: The notch and allpass (AP) functions can be obtained by connecting appropriate output currents directly without using additional active elements. The output signals are obtained at high output impedance ports, which is important for easy cascading in CM operation. SPICE simulation results are given to verify the theoretical analyses. (C) 2004 Elsevier GmbH. All rights reserved.