Design of Current-Mode Class 1 Frequency-Agile Filter Employing CDTAs

Atasoyu M. , Kuntman H., METİN B., Herencsar N., Cicekoglu O.

European Conference on Circuit Theory and Design (ECCTD), Trondheim, Norveç, 24 - 26 Ağustos 2015, ss.436-439 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Trondheim
  • Basıldığı Ülke: Norveç
  • Sayfa Sayıları: ss.436-439


In this study, in order to demonstrate the versatility of the active building block so-called current differencing transconductance amplifier (CDTA), a current-mode (CM) frequency-agile filter (FAF) application circuit is designed. The derived 2nd-order class 1 CM FAF employs three CDTAs, two capacitors and a single resistor. A layout is designed for CDTA and post-layout simulations are performed using CADENCE Spectre tool with TSMC 0.18 mu m level-49 CMOS technology process and BSIM3v3 parameters. The simulation results confirm theoretical findings.