Title :
Current-mode band-pass filters with Q-magnification
Author :
Fabre, Alain ; Amrani, Hafid ; Saaid, Omar
Author_Institution :
Lab. d´´Electron., Ecole Centrale de Paris, Chatenay-Malabry, France
fDate :
12/1/1996 12:00:00 AM
Abstract :
The authors present a new architecture that, for a second-order band-pass filter operating in current-mode, allows one to modify the quality factor without changing its center frequency f0. This is obtained by adding an auxiliary current-mode amplifier to the initial configuration of the filter. The resultant value of the Q-factor depends on the gain of this amplifier. SPICE simulation and experimental results, obtained from current-mode filters previously described, are given to confirm the theoretical analysis
Keywords :
Q-factor; active filters; band-pass filters; current conveyors; Q-factor; Q-magnification; auxiliary current-mode amplifier; current-mode filter; quality factor; second-order band-pass filter; Analog-digital conversion; Band pass filters; BiCMOS integrated circuits; Circuit theory; Electrons; Frequency; Q factor; SPICE; Signal processing; Signal processing algorithms;
Journal_Title :
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
