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我的ADS1259是这样用的，用的是单极性输入，参考电压是5V,现在遇到一个问题，就是我的输入在没接到ADS1259是是正常的2.5V，但是当接入ADS1259是就变成0V了，是因为我的输入驱动能力不够还是我ADS1259用的有问题，麻烦请教一下各位老师，给个指导意见，非常感谢!!
