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ADS127L01: Gain Calibration

Part Number: ADS127L01

根据Gain Calibration中的描述,满量程校准码采用二进制补码;Gain=1对应8000h;gain=2对应7FFFh;gain=0对应0000h。但是对于二进制补码而言,8000h为十进制的-32768,7FFFh为十进制的32767;分别对应最大码和最小码,为什么Gain=1对应的默认值不是16位二进制补码的中间数而是最小数?