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您好,我按照您的电路用TINA仿真了下,1M没问题,因为THS3001的带宽和压摆率都是足够的。并且可以参考下OUTPUT AMPLITUDE VS frequency的曲线,1M频率时输出幅度是没有衰减的。
我看了下您的电路图,正负电压不知您是不是接错了,按照Figure61的引脚对应关系,上面应该是-15V,下面是15V,我看您正好接反,不知实际电路是不是也接反了呢?