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opa820做5M巴特沃斯滤波器的问题

Other Parts Discussed in Thread: OPA820

    老师们好,我最近用opa820做一个5M的巴特沃斯滤波器,电路图是按照datasheet上给的图搭的:

上面的参数我基本上是和给出的一致,但是我上电之后他的输出波形晃动的很厉害,请教一下这个是怎么回事?