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

Author

Kilinc, S. ; Cam, Ugur

Author_Institution

Dokuz Eylul Univ., Izmir, Turkey

fYear

2004

fDate

28-30 April 2004

Firstpage

634

Lastpage

637

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. The high output impedance of the proposed filter configuration enables the circuits to be cascaded without requiring additional buffers. All passive sensitivities are no more than one half in magnitude. The theoretical results are verified with PSPICE simulations using a CMOS realization of CDBA.

Keywords

CMOS analogue integrated circuits; active filters; amplifiers; band-pass filters; current-mode circuits; electric impedance; high-pass filters; integrated circuit design; low-pass filters; notch filters; sensitivity; CMOS realization; bandpass filters; capacitors; current differencing buffered amplifier; current-mode filters; highpass filters; lowpass filters; notch filters; output impedance; passive sensitivity; resistors; second-order filter; Art; Band pass filters; Capacitors; Circuit simulation; Impedance; Resistors; SPICE;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing and Communications Applications Conference, 2004. Proceedings of the IEEE 12th

Print_ISBN

0-7803-8318-4

Type

conf

DOI

10.1109/SIU.2004.1338610

Filename

1338610