To obtain higher-order current-modes filter with high accuracy,high stability,and low sensitivity,a current-mode earthed generalized impedance converter(GIC) based on voltage-feedback amplifier(VFA S) was turned into a GIC based on adjoint Op-Amp s(AOA S) by means of the concept of adjoint network.
为了获得高精度、高稳定性和低灵敏度的高阶电流模式滤波器,根据伴随网络的概念,以传统的基于电压反馈运算放大器(VFA)的广义阻抗变换器(GIC)为原型,先设计出基于伴随运算放大器(AOA)的电流模式接地GIC,并讨论了由GIC所组成的频变负阻、电容-电阻变换。
To get high frequency and high accuracy biquad current mode filter, the frequency response of current mode integrator using AOA is analyzed, and the frequency response of current mode integrator with active compensation using AOA is also analyzed.
为获得高频率、高精度双二阶电流模式滤波器,根据实际伴随运算放大器(AOA)的开环频率特性,先分析了实际AOA积分器的频率特性,后分析了有源补偿的AOA积分器的频率特性。