想做个10M中心频率 100K带宽的带通滤波器,可是filter pro都是按照理想运放设计的,我把电路图搬到multisim里,用opa2227和opa690仿真 中心频率都到不了10M,想问下有源滤波器的运放芯片应该怎么选?谢谢了
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建议使用webench 软件,可以参考如下帖子,有关使用webench设计有源滤波器的步骤:
https://e2e.ti.com/blogs_/archives/b/onboard/archive/2013/10/18/trying-to-design-an-active-filter?tisearch=e2e-sitesearch&keymatch=filter%20selection
您再试试,我刚试了下,没有问题:Wei Wang62 说:webench我这边登不上去欸,显示服务器错误?前几天还可以登的
http://www.ti.com/design-tools/overview.html