Title :
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
fDate :
3/1/1995 12:00:00 AM
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;
Journal_Title :
Solid-State Circuits, IEEE Journal of
