Title :
Minimisation of MOSFET-C filter sensitivity by changing connections of capacitors
Author_Institution :
Inst. of Electron. Fundamentals, Warsaw Tech. Univ., Poland
fDate :
6/7/1990 12:00:00 AM
Abstract :
The influence of the finite gain bandwidth-product of operational amplifiers on the centre frequency and quality factor of the dominant pole of resistively symmetric MOSFET-C filters is presented. It is proved that the capacitor connection for which the structure of the filter is resistively and capacitively symmetric minimises the influence of the gain bandwidth-product on the centre frequency and quality factor parameters of the pole.
Keywords :
Q-factor; active filters; field effect transistor circuits; network analysis; sensitivity analysis; MOSFET-C filter; active type; capacitor connection charging; centre frequency; dominant pole; finite gain bandwidth-product; operational amplifiers; quality factor; resistively symmetric filters; sensitivity minimisation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19900512
