摘要
本文提出一种使用1只运放、1个电阻和5个电容构成的二阶有源滤波器电路。该电路具有功耗小、带动负载能力强、灵敏度低的特点。
A sort of active second-order iilter circuit constructed by one operational amplifier, one resistance and five capacities is presented in this paper.The circuit is characterized by its less power consumption smaller impedancce and lower sensitivity.