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IN333

Other Parts Discussed in Thread: INA333

麻烦各位大神帮忙赐教:

我采用INA333放大器放大一个10mv信号发现无法放大。

条件:单电源5V  单端输入  

结果:无法放大

条件:双电源 +2.5 /-2.5 单端输入

结果:可以放大

下面是电路图:

疑问:为啥单电源放大直流不行?手册上没有找到?求解释