给INA116芯片供电时,供电电压采用正负3.3V可行么。技术手册上给的是4.5~18,但是我在测试某型号表时发现INA116供电电压为3.3v,请给与指教是否可行。
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首先INA116单电源供电最小值不能小于9V。dewey 说:你好,我想在请教下,+-5v供电与+-9v供电对INA116的性能会有很大差别么。或者说如果我采用5v电源,会不会使116的芯片性能变得较差。谢谢!
+-9V和+-5V供电差别主要看你想得到输出电压范围,和输入共模电压范围,因为不是轨至轨输入输出,所以距离电源轨都有一定压差。