Title :
A new biquad circuit realizing high-order MOSFET-C filters
Author :
Raslan, Nabil A. ; Said, A.E. ; Elkfafi, M.
Author_Institution :
Dept. of Circuits & Syst., Mil. Tech. Coll., Cairo, Egypt
Abstract :
The MOSFET-C continuous-time biquadratic building block proposed by A.E. Said et al. (1991) does not realize all generic transfer functions. When implemented in a high-order realization, it requires the addition of unity gain inverters. A new biquad circuit is proposed to overcome the above problems. It achieves a complete MOS nonlinearity cancellation and does not require the use of fully balanced op amps. An example of a second-order biquad filter is analyzed using SPICE. A high-order implementation of the proposed biquad is also given. All design steps are matched with the 3.3-μm CMOS design rules
Keywords :
CMOS integrated circuits; SPICE; active filters; circuit analysis computing; invertors; 33 micron; CMOS design rules; MOS nonlinearity cancellation; MOSFET-C filters; SPICE; biquad circuit; fully balanced op amps; unity gain inverters; Band pass filters; Filtering; Inverters; MOSFET circuits; Operational amplifiers; Performance analysis; Prototypes; Resistors; SPICE; Transfer functions;
Conference_Titel :
Circuits and Systems, 1992., Proceedings of the 35th Midwest Symposium on
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-0510-8
DOI :
10.1109/MWSCAS.1992.271349
