A higher level modeling procedure for analog integrated circuits
Analog Integrated Circuits and Signal Processing - Special issue on computer-aided design of analog circuits and systems
Identification and Modeling of Nonlinear Dynamic Behavior in Analog Circuits
Proceedings of the conference on Design, automation and test in Europe - Volume 1
VLSID '06 Proceedings of the 19th International Conference on VLSI Design held jointly with 5th International Conference on Embedded Systems Design
Efficient DDD-based term generation algorithm for analog circuit behavioral modeling
ASP-DAC '03 Proceedings of the 2003 Asia and South Pacific Design Automation Conference
Efficient Model Update for General Link-Insertion Networks
ISQED '06 Proceedings of the 7th International Symposium on Quality Electronic Design
Algorithms for automated model topology formulation
Algorithms for automated model topology formulation
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Projection-based approaches for model reduction of weakly nonlinear, time-varying systems
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Modeling nonlinear dynamics in analog circuits via root localization
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Compact reduced-order modeling of weakly nonlinear analog and RF circuits
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
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A novel algorithm for automatic behavioral model topology formulation (MTF) is described in this paper. Several new terms are defined to support this formulation approach. The algorithms for determining the controllability and equivalence of branches are developed. The identification of differential pairs and current mirror structures is implemented automatically. Some other algorithms identify a subset of nodes in circuits that are extracted and modeled, while the other nodes will be collapsed. The MTF algorithm then is applied to construct a new signal-path graph, i.e., forming an equivalent circuit that has the ability to represent the behavior of the original circuit in a much-simplified form. This algorithm is implemented in a fully automated modeling tool, ASCEND, which starts from the netlist description of a circuit and generates a differential-algebraic-equation-based model. These models are able to represent static and dynamic behaviors with excellent accuracy and significant simulation speedup. The details of the MTF algorithm are described. Examples of applying the MTF algorithm for behavioral modeling are given.