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U16的IN2+输入差不多是1.25V左右的直流信号，然后经过一级跟随后量AINP处的信号就不是1.25V的直流信号，纹波非常厉害，峰峰值达到了5V，AINP接到了ADS8339的IN+，不知道是哪里问题，TI的高手帮忙看看哪里有设计问题。
您好，
建议您一级一级的调试，比如断开R55后，测试U16的输出AINP正常吗？
