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用两个OPA690接成一个二级饱和放大,出现振铃现象。

Other Parts Discussed in Thread: OPA690

用两个OPA690接成一个二级饱和放大,出现振铃现象。两级放大都是放大11倍,总共放大121倍,但在不同的频率下,振铃现象会有不同。解决振铃现象的方法有哪些?

下面是示波器单次触发的图片;