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使用ADS1230采集--电池电压信号
SPPED--0
GAIN--0-- PGA64倍
AVDD--DVDD--REFP全部接到同一个5V
AGND--DGND--REFN接到同一个GND
输入AINP,AINN之间10mv
按理论上CAP之间放大64倍，应有640mv
但实测只有21mv左右，
有遇到过类似的问题没？
一般什么导致的可能性大
