An Algorithm for Numerical Reference Generation in Symbolic Analysis of Large Analog Circuits

Authors:
Ignacio Garcia-Vargas;Mariano Galan;Francisco V. Fernandez;Angel Rodriguez-Vazque.
Affiliations:
IMSE, Centro National de Microelectrónica, Edif. CICA, Avda. Reina Mercedes s/n, E-41012 Sevilla, Spain;IMSE, Centro National de Microelectrónica, Edif. CICA, Avda. Reina Mercedes s/n, E-41012 Sevilla, Spain;IMSE, Centro National de Microelectrónica, Edif. CICA, Avda. Reina Mercedes s/n, E-41012 Sevilla, Spain;IMSE, Centro National de Microelectrónica, Edif. CICA, Avda. Reina Mercedes s/n, E-41012 Sevilla, Spain
Venue:
EDTC '97 Proceedings of the 1997 European conference on Design and Test
Year:
1997

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Abstract

This paper addresses the problems arising in the calculation of numerical references (network function coefficients), essential for an appropriate error control in simplification before and during generation algorithms for symbolic analysis of large analog circuits. The conventional polynomial interpolation method reveals to be unable to handle the large circuit sizes needed, mainly due to the dramatic effect of round-off errors. This paper introduces a new algorithm able to accurately calculate the network function coefficients of large analog circuits in an efficient way.