Title :
A Q-enhanced active-RLC bandpass filter
Author :
Duncan, Ralph ; Martin, Kenneth W. ; Sedra, Adel S.
Author_Institution :
Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada
fDate :
5/1/1997 12:00:00 AM
Abstract :
A fully differential high-Q bandpass filter that uses lossy integrated inductors is presented. The circuit is implemented in a 0.8 μm BiCMOS technology and realizes a center frequency of 750 MHz with a Q-factor that is tunable from 10 to 490 while dissipating 80-100 mW from a single 5 V supply. Since the objective of the prototype was to explore the proposed Q-enhancement technique, the dynamic range is limited to 25 dB for Q=20
Keywords :
BiCMOS analogue integrated circuits; Q-factor; active filters; inductors; 0.8 micron; 5 V; 750 MHz; 80 to 100 mW; BiCMOS technology; Q-enhancement technique; Q-factor; active-RLC bandpass filter; center frequency; dynamic range; fully differential high-Q bandpass filter; lossy integrated inductors; Active filters; Active noise reduction; Band pass filters; Capacitors; Feedback circuits; Feedback loop; Inductors; Q factor; Transfer functions; Voltage;
Journal_Title :
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
