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各位好：
我现在用F2812做电机驱动系统，需要用AD采样电流，和电压。请问一下：F2812的AD模块对传感器运放电路有什么要求，是输出电阻越小越好吗？还有最高频率是多少？
谢谢
和你要采的信号有关，如果要采很高频率的信号，你的运放的带宽，压摆率都要足够。2812的最大采样频率是12.5M.
