Current-tunable current-mode multifunction filter employing a modified CCCCTA

Author

Kumngern, Montree ; Torteanchai, Usa ; Sarsitthithum, Kanok

Author_Institution

Dept. of Telecommun. Eng., King Mongkut´´s Inst. of Technol. Ladkrabang, Bangkok, Thailand

fYear

2012

fDate

18-20 July 2012

Firstpage

1794

Lastpage

1797

Abstract

This paper presents a current-tunable current-mode universal biquadratic filter with two inputs and two outputs using one modified current-controlled current differencing transconductance amplifier, two grounded capacitors and one grounded resistor. The proposed circuit provides following advantages: realization of low-pass, band-pass, high-pass, band-stop and all-pass current responses; orthogonal control of the natural frequency and the quality factor; employment of grounded passive components which is suitable for integrated circuit implementation and low active and passive sensitivities. Simulation results are given to confirm the presented theory.

Keywords

Q-factor; amplifiers; biquadratic filters; capacitors; current-mode circuits; resistors; all-pass current response; band-pass current response; band-stop current response; current-controlled current differencing transconductance amplifier; current-tunable current-mode multifunction filter; grounded capacitor; grounded passive component; grounded resistor; high-pass current response; low-pass current response; modified CCCCTA; natural frequency; orthogonal control; quality factor; universal biquadratic filter; Band pass filters; Capacitors; Filtering theory; Integrated circuits; Sensitivity; Transconductance; biquad filter; current-mode circuit; modified current-controlled current conveyor transconductance amplifier;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics and Applications (ICIEA), 2012 7th IEEE Conference on

Conference_Location

Singapore

Print_ISBN

978-1-4577-2118-2

Type

conf

DOI

10.1109/ICIEA.2012.6361018

Filename

6361018