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运放的输出电阻和下一级运放输入电阻之间的关系?

我们都知道运放的输入电阻很大,输出电阻很小,但是在高频中为了避免反射所引起的各种问题都会尽量的使得前一级的输出阻抗等于后一级的输入电阻。那么问题来了,在这种矛盾的情况下,级与级之间应该怎么去连接呢?希望高人指点,不胜感激!