Title :
On the design of low-sensitive BOTA-C biquadratic filter
Author :
Mahmoud, Sabri A.
Author_Institution :
Electron. & Commun. Eng. Dept., Cairo Univ., Fayoum, Egypt
Abstract :
The effects of the balanced output transconductor (BOTA) parasitic elements on second-order filter parameters are studied. New expressions are used to evaluate the shifts in the center frequency and the quality factor of a recently reported mixed-mode filter, based on the balanced output transconductor. A design procedure that minimizes the effects of the parasitic elements is also included. PSpice simulations are given to confirm the theoretical analysis.
Keywords :
Q-factor; all-pass filters; band-pass filters; biquadratic filters; current-mode circuits; frequency response; high-pass filters; low-pass filters; notch filters; BOTA parasitic elements; BOTA-C biquadratic filter; allpass response; balanced output transconductor; center frequency shifts; current-mode bandpass; current-mode highpass; frequency response; low-sensitivity biquadratic filter; mixed-mode filters; notch response; quality factor; second-order filters; voltage-mode bandpass; voltage-mode lowpass; Active filters; Analytical models; Equations; Frequency; Operational amplifiers; Q factor; Signal processing; Transconductance; Transconductors; Transfer functions;
Conference_Titel :
Electronics, Circuits and Systems, 2003. ICECS 2003. Proceedings of the 2003 10th IEEE International Conference on
Print_ISBN :
0-7803-8163-7
DOI :
10.1109/ICECS.2003.1301806
