Title :
Voltage-mode universal biquadratic filter using a single DDCCTA
Author :
Lamun, P. ; Phatsornsiri, Punnavich ; Kumngern, Montree ; Torteanchai, Usa
Author_Institution :
Sch. of Eng., King Mongkut´s Inst. of Technol. Ladkrabang Chumphon Campus, Chumphon, Thailand
Abstract :
In this paper, a novel two-input four-output voltage-mode universal biquadratic filter is presented. The filter circuit uses only one differential difference current conveyor trans-conductance amplifier (DDCCTA) and four passive components. The circuit can provide low-pass (LP), band-pass (BP), band-stop (BS), high-pass (HP), and all-pass (AP) biquadratic functions. The natural angular frequency (ωo) and the quality factor (Q) can be orthogonally tuned by adjusting the circuit components. The proposed configuration has a low component count and low active and passive sensitivities. PSPICE simulations with 0.5 μm MIETEC CMOS process parameters are given to confirm the theoretical predictions.
Keywords :
CMOS integrated circuits; Q-factor; SPICE; all-pass filters; band-pass filters; band-stop filters; biquadratic filters; circuit tuning; current conveyors; differential amplifiers; high-pass filters; low-pass filters; passive filters; AP biquadratic function; BP function; BS function; DDCCTA; HP function; LP function; MIETEC CMOS process parameter; PSPICE simulation; active sensitivity; all-pass biquadratic function; band-pass function; band-stop function; circuit components; component count; differential difference current conveyor transconductance amplifier; filter circuit; high-pass function; low-pass function; natural angular frequency; orthogonal tuning; passive components; passive sensitivity; quality factor; two-input four-output voltage-mode universal biquadratic filter; Band-pass filters; Computer science; Power harmonic filters; Sensitivity; Standards; Transconductance; Differential difference current conveyor transconductance amplifier (DDCCTA); biquadratic filter; voltage-mode circuit;
Conference_Titel :
Computer Science and Engineering Conference (ICSEC), 2013 International
Conference_Location :
Nakorn Pathom
Print_ISBN :
978-1-4673-5322-9
DOI :
10.1109/ICSEC.2013.6694811
