Title :
Active RC filter with reduced capacitance by current division technique
Author :
Yeung, Nang-Ching ; Pun, Kong-Pang ; Choy, Chiu-Sing ; Chan, Cheong-Fat
Author_Institution :
Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Shatin, China
Abstract :
In this work, the current division technique is applied to active RC filter design to reduce the capacitance. A fourth order Butterworth active RC filter with a nominal cutoff frequency of 20 kHz is designed in a 0.35 μm CMOS technology. The capacitance can be reduced by a factor of 62.5 after using the current division technique.
Keywords :
Butterworth filters; CMOS integrated circuits; RC circuits; active filters; capacitance; continuous time filters; 0.35 micron; 20 kHz; CMOS technology; active RC filter design; current division technique; fourth order Butterworth filter; reduced capacitance; Active filters; CMOS technology; Capacitance; Circuits; Cutoff frequency; Logic; MOS capacitors; MOSFETs; Resistors; Voltage;
Conference_Titel :
Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Print_ISBN :
0-7803-8834-8
DOI :
10.1109/ISCAS.2005.1465328
