阻容元件温漂对低通有源滤波器的影响

The Influence to the Active Low Pass Filter (LPF) Causing by the Resistance-capactiance Element Temperature Excursion

滤波器是一个频率选择部件,它可以通过某些频率而抑制或衰减另外一些频率的信号,该文介绍了模拟滤波器的发展及类型,通过对模拟滤波器的设计,对低通有源滤波器采用的阻容元件随温度变化特性进行分析及模拟仿真,提出如何解决阻容元件温漂对频率响应及产品灵敏度精度的影响。

Filter is an element which can choose the frequency.It can pass the specifically frequency and makes the others attenua- tion.This paper introduces the development and the type of the simulation filter.By the design of the simulation filter,and analyse and em- ulation the resistance-capactiance＇s characteristic with the temperature＇s change of the active low pass filter,presenting how to solve the influence about frequency response and sensitivity causing by the resistance-capactiance temperature excursion.