Title :
Field programmable Gm-C array for wide frequency range bandpass filter applications
Author :
Lebel, Eric ; Assi, Ali ; Sawan, Mohamad
Author_Institution :
Ecole Polytechnique de Montreal, Que., Canada
Abstract :
A new programmable bandpass filter approach is presented. It is based on an array of fully differential transconductance circuits to control the filter parameters. The signal path does not contain any switch and fine-tuning of the filter parameters is implemented using programmable capacitors. The filter circuit is based on a biquadratic topology and designed with CMOS 0.18 μm technology. SpectreS simulation results show a power consumption less than 5.2 mW with a ± 0.9 V power supply. In addition, a wide frequency range (10-126 MHz) is achieved. The quality factor can also be tuned from 0.1 to 10.6.
Keywords :
CMOS analogue integrated circuits; Q-factor; band-pass filters; biquadratic filters; capacitors; circuit simulation; circuit tuning; differential amplifiers; field programmable analogue arrays; 0.18 micron; 10 to 126 MHz; CMOS 0.18 mm technology; SpectreS simulation; biquadratic topology; differential transconductance circuits; field programmable Gm-C array; fine tuning; programmable capacitors; quality factor; wideband bandpass filter; Band pass filters; CMOS technology; Capacitors; Circuit simulation; Circuit topology; Energy consumption; Filter bank; Frequency; Switches; Transconductance;
Conference_Titel :
Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Print_ISBN :
0-7803-8834-8
DOI :
10.1109/ISCAS.2005.1464996
