Op-Amp in sc filters is considered as singlepole model; with the hepl of matrix operation a new analytical method of sc filter of non-ideal Op-Amp is repres ented, based on the accumuation of charge conservation and time-differential equation of Op-Amp.

• 用单极点模型描述开关电容滤波器中的运放:一种以电荷守恒方程和运放时域微分方程为基础,借助于矩阵运算而分析具有一阶运放的SC滤波器的方法。