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寻求高精度电流测量方案

小弟最近需要做一个项目,包括40个通道的高精度电流采样,技术指标如下:

1.测量范围:0-500mA;

2.测量精度:最大绝对误差:0.01mA;

3.可承受短时间最大电流:5A持续时间1s。

请各位帮帮忙给出一个参考方案,或者ad选型,谢谢各位喽!