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OPA227: 放大器V+电压范围确认

Part Number: OPA227

Hi all,

我的项目中目前选用OPA227作为电压跟随器,我看它手册中写出了在单电源的时候输入电源电压可以为5V,但是我在TI仿真时却遇到了问题想要请教一下你们:

如下方图一图二所示,在单电源时运算放大器的输出能力出现了较大的偏差,而在双电源的情况下是比较完美的,请问是单电源对运算放大器的输出能力有影响吗?还是说是TINA仿真软件的问题?

图一

图二