TI中文支持网请问ads1248如何测量负电压，硬件上要做哪些处理，软件上又要做什么处理啊，正电压我是可以测了，就是负电压测不出来啊，搞了两天了
Carter Liu：
你的模拟供电电压首先要选择双极性供电，软件上处理和正电压是一样的，注意符号位
ads1248如何测量负电压
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