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LMP91200能否用信号源进行调试

xiong yingjun
Prodigy 80 points
Other Parts Discussed in Thread: LMP91200

我看到LMP91200 datasheet里说PH值电极的输出范围是正负415mv，我就想用信号源输出mv级（正负415mv之间，比如100mv，200mv之类）直流信号，LMP91200选择差分输出，结果发现连续几次测量，数值跳动比较大，进行了多次采样平均，数值依旧跳动比较大。我想问，是不是不能用信号源模拟PH电极直接调试这个芯片？麻烦解释一下，谢谢！