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按照SBAU163B评估板布线，已调通；但只能测正输入信号，若想测正负差分输入信号，请问PGA280的VSOP、VSON，ADS1259的AVDD、AVSS如何接电源？
急等。。。
差分的负信号并不需要 电源等引脚的电压调整.
差分是相减得负的信号, 这两条信号线的电位仍然是要正的.
但我目前在测负信号（单端）时，输出电压按照D*2.5*8/2^22为39.999，D为采样值，显然不对，若电源接的没问题，为何？请不吝赐教！附正单端信号采样结果
