Title :
Integrated continuous-time filter with amplitude detection tuning
Author :
Ajjikuttira, Aruna ; Stromsmoe, K.A. ; Filanovsky, I.M.
Author_Institution :
Alberta Univ., Edmonton, Alta., Canada
Abstract :
A continuous-time fifth-order Chebyshev lowpass filter integrated in a 3-μm double-metal CMOS process is described. The filter incorporates an on-chip tuning circuit based on an amplitude detection scheme. The filter cutoff frequency can be tuned in the range of 8-32 kHz. The circuit requires a ±2.5-V power supply and occupies a die area of about 4.5 mm×1.13 mm
Keywords :
CMOS integrated circuits; Chebyshev approximation; active filters; low-pass filters; tuning; 3 micron; 8 to 32 kHz; amplitude detection scheme; continuous-time fifth-order Chebyshev lowpass filter; die area; double-metal CMOS process; filter cutoff frequency; on-chip tuning circuit; power supply; Active filters; CMOS process; Chebyshev approximation; Circuit optimization; Cutoff frequency; Low pass filters; MOSFETs; Resistors; Tuning; Voltage;
Conference_Titel :
Circuits and Systems, 1989., Proceedings of the 32nd Midwest Symposium on
Conference_Location :
Champaign, IL
DOI :
10.1109/MWSCAS.1989.101820
