Abstract
A graph-based symbolic technique is introduced for the computation of fully-symbolic expressions of analog integrated circuits. The system of equations is formulated by using nullor-equivalents of the SPICE-like circuit elements, and then by applying just nodal analysis (NA). The proposed technique is extended to perform symbolic sensitivity analysis not only with respect to each symbolic-element but also with respect to multi-parameters. Several examples are presented in order to compare the performance of the proposed graph-based symbolic technique with the already known determinant decision diagram (DDD) method and with HSPICETM. As a result, it is shown that as for the DDD method, the graph-based symbolic technique is compact, unique and the complexity to obtain the symbolic expression depends on the size of the graph.
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Rodriguez-Chávez, S., Palma-Rodriguez, A.A., Tlelo-Cuautle, E., Tan, S.X.D. (2013). Graph-Based Symbolic and Symbolic Sensitivity Analysis of Analog Integrated Circuits. In: Fakhfakh, M., Tlelo-Cuautle, E., Castro-Lopez, R. (eds) Analog/RF and Mixed-Signal Circuit Systematic Design. Lecture Notes in Electrical Engineering, vol 233. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-36329-0_5
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DOI: https://doi.org/10.1007/978-3-642-36329-0_5
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