Published in Proceedings of the 38th IEEE Midwest Symposium on Circuits and Systems: Rio de Janeiro, Brazil, Volume 1, August 13, 1995, pages 170-173.
Copyright © 1995 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. The definitive version is available at http://dx.doi.org/10.1109/MWSCAS.1995.504405.
NOTE: At the time of publication, the author Vladimir Prodanov was not yet affiliated with Cal Poly.
Two Gm-C biquad structures are derived. They use only two grounded capacitors and three transconductors, two of which have double-outputs. The realization of the double-output transconductors is discussed. It is shown that only two additional transistors are needed to convert a single-output transconductor to a double-output one suitable for implementation of the proposed structures. HSPICE simulations and experimental results of a 5-th order inverse Gaussian filter using the proposed biquad structures are given.
Electrical and Computer Engineering