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A Q-enhanced active-RLC bandpass filter

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3 Author(s)
Duncan, R. ; Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada ; Martin, K.W. ; Sedra, Adel S.

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

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Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on  (Volume:44 ,  Issue: 5 )