我用了两个ADG734芯片实现SP3T的效果，结果怎么也测不得示数，总是返回FFFF（可能是超量程），但是按理说没有这么大的电容。然后我发现我在断电的情况下（切掉+5VIN），LED还是会亮，程序也正常工作，这是什么问题呢？是ADG734芯片里有漏电流吗，我是不是应该换其他的模拟开关芯片呢？
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