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Symbolic circuit-noise analysis and modeling with determinant decision diagrams

In this paper, a new symbolic noise analysis and modeling technique is presented. The new method exploits the sharing of symbolic expressions in the noise models by using a recently introduced graph, called determinant decision diagrams (DDDs), for symbolic determinant representations. With efficient DDD-based graph manipulations, we are able to generate the exact noise models for analog blocks. Symbolic noise analysis and modeling on real analog circuit examples are presented and compared with SPICE noise simulation.