An active-RC reconfigurable lowpass-polyphase Tow-Thomas biquad filter

A novel active-RC biquad is presented which can be reconfigured as a polyphase filter for a low IF wireless receiver architecture, and as a lowpass filter for a zero IF wireless receiver architecture. A second order lowpass-polyphase reconfigurable filter is implemented to illustrate the technique. A 1.8 V fully differential operational amplifier in 0.18 /spl mu/ CMOS technology is used as the active element.


Presented at:
47th Midwest Symposium on Circuits and Systems, 25-28 July 2004
Year:
2004
Keywords:
Laboratories:




 Record created 2005-11-04, last modified 2018-03-17


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