本文针对小信号情况下运放有限增益和有限带宽对开关电容网络的影响，提出了利用离散域运放宏模型分析此问题的方法。
In this paper, the effects of the Op · Amp finite gain and bandwidth on the performance of sc networks in small signal are discussed and a method using Z-domain Op · Amp macromodel is presented.
本文提出了运放增益为有限值时的SC电导和SC阻抗模型，用它们分析了运放有限增益对双二阶开关电容滤波器(SCF)性能的影响。
The models of SC Conductance and impedance with finite gain op amp are established. From these models, an analysis of finite gain effect on biquadratic SCF is made.
同时针对主要来自模拟电路的诸如实际电容的不精确匹配、放大器的有限增益等因素，通过MATLAB模型来详细分析这些模拟电路误差会对于电路性能产生的影响。
The difference between the real circuit and the design model due to the capacity mismatching, finite gain of amplifier and other analog mismatch can be simulated by MATLAB.
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