Efficient symbolic computation of approximated small-signal characteristics of analog integrated circuits
Efficient symbolic computation of approximated small-signal characteristics of analog integrated circuits
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DOI：
10.1109/4.364450
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发表时间：
1995-03
期刊：
影响因子：
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通讯作者：
P. Wambacq;Francisco V. Fernández;G. Gielen;W. Sansen;Á. Rodríguez-Vázquez
中科院分区：
文献类型：
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作者：
P. Wambacq;Francisco V. Fernández;G. Gielen;W. Sansen;Á. Rodríguez-Vázquez
一个符号分析工具，产生简化的符号表达式的小信号特性的大型模拟集成电路。表达式在计算时被近似，因此仅生成保留在最终表达式中的那些项。与以前的符号分析工具相比，这一原理大大节省了CPU时间和内存。通过这种方式，可以分析的电路的最大尺寸大大增加。通过考虑电路参数值的范围而不是单个数字，生成的表达式也更普遍有效。在算法中明确考虑了不匹配处理。几个实验结果说明了新工具的能力。>
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. >