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BQ40Z80: 电流的检测精度如何计算,如何把器件的误差,偏差结合在一起

Part Number: BQ40Z80


参考以下文件的内容,假调流过电阻的电压为10mV, 电阻最小为0.99mΩ,那么总电流最大公差的计算如下:(10mV+正向最大误差)/0.99mΩ+(10mV+正向最大偏差)/0.99mΩ。请问有什么没有考虑在内的?因为这样算的精度很高,但实测达不到。

参考文件bq20z90, and bq20z95 Voltage, Current,

and Temperature Measurement Accuracy有以下表格