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AMC1301的电阻分压增益怎么计算的?

Other Parts Discussed in Thread: AMC1301

你好,我在看三相VIENNA的原理图时候,遇到个问题,如下图

在计算电阻分压的增益时候,假设VPM=300V,那么通过电阻R94 R95 R97和R100电阻分压,得到的增益应该为 2.74/(3000+2.74)=0.0009125

即VINP=0.0009125*300=0.27375V

但是我看给的参考数据,如下图:

增益为0.00079,并不是我刚刚算出的0.0009125,我也查看了AMC1301的数据手册,也不是很明白,请问是什么原因导致的?