Current differencing buffered amplifier (CDBA) based current-mode filters


KILINÇ S., Cam U.

IEEE 12th Signal Processing and Communications Applications Conference, Kusadasi, Turkey, 28 - 30 April 2004, pp.634-637 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume:
  • City: Kusadasi
  • Country: Turkey
  • Page Numbers: pp.634-637
  • Dokuz Eylül University Affiliated: Yes

Abstract

A new current-mode second-order filter configuration is proposed. Using the presented configuration lowpass, highpass, bandpass and notch filters can be realized employing only a single current differencing buffered amplifier (CDBA), two capacitors and two resistors which are minimum in number. High output impedance of the proposed filter configuration enables the circuits to be cascaded without requiring additional buffer. All passive sensitivities are no more than one half in magnitude. The theoretical results are verified with MICE simulations using a CMOS realization of CDBA.