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使用opa842做电压跟随器的问题

Other Parts Discussed in Thread: OPA842

这样用opa842搭了个电压跟随器,想跟随20Hz-10MHz的信号的。在板子上面测试时,发现出现了振荡,大概30-100MHz的振荡信号,

842不是单位增益稳定的吗?求解答。。。。