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ad7682使用双极性差分采集,内部参考电压4.096v,采集±10v电压,为什么在11v以上,电压采集会反转,比如输入11v,ad采到的值是-11v,是超过vref范围会反转吗?另外帮忙看看这个电路有没有问题

The ad7682 uses bipolar differential acquisition, the internal reference voltage is 4.096v, and it collects ±10v voltage. Why is the voltage acquisition reversed when it is above 11v? ? Also, help to see if there is any problem with this circuit

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[edited by: GenevaCooper at 10:20 PM (GMT -5) on 12 Jan 2023]