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30M,5mV信号放大到5V用什么芯片较好

Other Parts Discussed in Thread: OPA637, VCA810, VCA822, OPA627, OPA820, LM358, LMH6643

同时,将5V,10M的信号衰减到100mV,用什么芯片较好。我用的OPA637来衰减,可是在增益接近一的时候就自激。求指导