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TI 76930 16-Bit CC ADC是否需要calibration?



我用TI 76930的AFE, Rsense为0.5m ohm
目前在idle时(没有充电也没有放电情况下), Rsense量到的压差发现有大约0.8mA的电差

我的Rsense是用0.5m ohm
换算成电流为I = 0.8 / 0.5 = 1.6A

这是正常的吗? TI的AFE有需要做什么calibration吗?

Thanks