An optimization-based methodology for designing robust high frequency Gm-C filters is presented. In the first step of the design, the topology for high-frequency Gm-C filter is obtained directly from an active RC prototype, using the a transformation method proposed in [1]. where a transformation method for designing Gm-C filters from known RC filters while grounding floating capacitors is proposed. In the above mentioned paper the filter elements values are obtained by a user-defined methodology which can produce high sensitivity to component variations. In the work developed, the analytical characterization of a 2nd order Gm-C Sallen-Key LP filter is considered as well as the corresponding symbolic expressions for their sensitivity to component value variations. By using the minimization of the sensitivity as a goal function in the optimization process, parasitic capacitances are canceled and robust designs are obtained. Optimization and simulations results that validate the theoretical results are presented. © 2012 IFIP International Federation for Information Processing.
CITATION STYLE
Leitão, P. M. V., & Fino, H. (2012). Robust optimization-based high frequency Gm-C filter design. In IFIP Advances in Information and Communication Technology (Vol. 372 AICT, pp. 465–474). Springer New York LLC. https://doi.org/10.1007/978-3-642-28255-3_51
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