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衰减器请教一下思路

各位TI论坛的大侠们,请教一下衰减器的问题,目前想搭一款衰减器,输入1-100V,衰减10倍,带宽20M,您觉得用什么方案好呢?
先电阻分压,再运放缓冲?

目前用电阻分压,试了一下带宽只能达到10M,不知道各位有啥好思路没有,能否提点一下!