Simple realization of a third order Butterworth filter with MOS-only technique

Atasoyu M., Metin B., Kuntman H., Cicekoglu O.

AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS, cilt.81, ss.205-208, 2017 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 81
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1016/j.aeue.2017.08.012
  • Dergi Adı: AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.205-208
  • Anahtar Kelimeler: Analog electronics, Low power, Analog filter, Active filter, Butterworth filter, MOS-only, ALLPASS FILTERS
  • Atatürk Üniversitesi Adresli: Hayır

Özet

Recently, many active filter circuits that use only MOS transistors were presented in the literature. In these circuits, instead of passive resistors, transconductances of MOSFETs operating in saturation region are used. Moreover, their parasitic gate to source capacitances are employed instead of passive capacitors. These circuits provide circuit implementation with fewer transistors and eliminate the need for external passive elements. In this study, a MOS-only third order Butterworth filter for high frequency applications has been proposed. The circuit leads to a compact circuit having fewer number of transistors compared to classical active block-based analog counterparts. Simulation results agree well with the theoretical study. (C) 2017 Elsevier GmbH. All rights reserved.