信号流驱动的模拟电路版图综合方法(英文)

A Signal-Flow Driven Automatic Physical Synthesis Methodology for Analog Circuits

提出了一种新的基于信号流分析的模拟电路版图综合方法.电路分析子系统采用新提出的信号流分析方法再结合已有的电路拓扑分析和电路灵敏性分析方法生成布图约束控制电路性能的衰减.由于考虑了电路中有关信号流的启发式信息,该方法的复杂性较一般的纯粹性能驱动方法小.然后分别在器件生成子系统、布图子系统和布线子系统中实现这些约束,使得这些约束在最容易实现的阶段得到满足.实际的电路例子已经证明了这一方法可以获得出色的电路性能.

This paper introduces a novel automatic physical synthesis methodology for analog circuits based on the signal-flow analysis.Circuit analysis sub-system adopts the newly advanced methodology,circuit topology analysis,and circuit sensitivity analysis to generate layout constraints and control performance degradations.Considering the heuristic information about signal-flow,complexity of the methodology is less than the pure performance-driven methodology.And then these constraints are implemented in device generation,placement,and routing sub-systems separately,which makes the different constraints be satisfied at most easily implemented stages.Excellent circuit performance obtained by the methodology is demonstrated by practical circuit examples.