摘要
本文提出了采用OTA微分器设计高通滤波器的方法.基于有源滤波器的跳耦综合,导出了全极点高通梯形滤波器的OTA-C实现.该滤波器具有低灵敏度和高截止频率,与MOS工艺兼容,便于单片集成,调整方便.文中给出了实验结果和P-SPICE模拟,证明此滤波器的可行性.
A design technique for high-pass filters using OTA differentiator is presenred. By means of the leapfrog synthesis of the active filters, the OTA-C realization of the highorder high-pass filters is built up. The filter is compatible with MOS process. It has low sensitivity performance and high cut-off frequency, and can be tuned conveniently by the external voltages. Experimental results and P-SPICE simulation are given to prove its feasibility
关键词
高通滤波器
信号流图
运算放大器
OTA-C high-pass filier
Signal flow graph
Differentiator
OTA differentiator
