Efficient symbolic computation of approximated small-signal characteristics of analog integrated circuits

Author

Wambacq, Piet ; Fernández, Francisco V. ; Gielen, Georges ; Sansen, Willy ; Rodriguez-Vázquez, Angel

Author_Institution

Dept. Elektrotech., Katholieke Univ., Leuven, Belgium

Volume

30

Issue

3

fYear

1995

fDate

3/1/1995 12:00:00 AM

Firstpage

327

Lastpage

330

Abstract

A symbolic analysis tool is presented that generates simplified symbolic expressions for the small-signal characteristics of large analog integrated circuits. The expressions are approximated while they are computed, so that only those terms are generated which remain in the final expression. This principle causes drastic savings in CPU time and memory, compared with previous symbolic analysis tools. In this way, the maximum size of circuits that can be analyzed, is largely increased. By taking into account a range for the value of a circuit parameter rather than one single number, the generated expressions are also more generally valid. Mismatch handling is explicitly taken into account in the algorithm. The capabilities of the new tool are illustrated with several experimental results

Keywords

analogue integrated circuits; circuit CAD; circuit analysis computing; integrated circuit design; network parameters; analog integrated circuits; approximated small-signal characteristics; circuit parameter; large integrated circuits; mismatch handling; symbolic analysis tool; symbolic computation; Algorithm design and analysis; Analog computers; Analog integrated circuits; Central Processing Unit; Character generation; Circuit analysis; Frequency; Performance analysis; Performance evaluation; Transfer functions;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/4.364450

Filename

364450