Title :
On simplification techniques for symbolic analysis of analog integrated circuits
Author :
Fernández, F.V. ; Martín, J.D. ; Rodriguez-Vázquez, A. ; Huertas, J.L.
Author_Institution :
Dept. of Design of Analog Circuits, Centro Nacional de Microelectron., Sevilla, Spain
Abstract :
The topic of formula simplification for symbolic analyzers is addressed. Previously reported criteria for flat analysis approaches are briefly reviewed, and their limitations are illustrated via examples of practical circuits. An adaptive simplification method using pole/zero monitoring for error control is given to alleviate some of these problems. Then a new simplification strategy is presented which takes into account potential ranges of variation of the different symbolic parameters and which overcomes the drawbacks of previous criteria. An algorithm for the approximation of symbolic formulas obtained via hierarchical symbolic analysis approaches is also outlined
Keywords :
circuit analysis computing; linear integrated circuits; poles and zeros; symbol manipulation; adaptive simplification method; algorithm; analog integrated circuits; error control; flat analysis approaches; hierarchical symbolic analysis; pole/zero monitoring; simplification techniques; symbolic analysis; Adaptive control; Analog circuits; Analog integrated circuits; Error correction; Integrated circuit modeling; Mirrors; Monitoring; Poles and zeros; Programmable control; Semiconductor device modeling;
Conference_Titel :
Circuits and Systems, 1992. ISCAS '92. Proceedings., 1992 IEEE International Symposium on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0593-0
DOI :
10.1109/ISCAS.1992.230323
