在使用ISO224BDWVR进行评估测试时,发现芯片输入较低电压时,增益的精度开始下降,离手册里描述的1/3的固定增益偏差较大,具体为输入1V时,输出电压0.4V,增益为0.4,误差已经很大了
在低电压区无法正常使用,请问是什么问题?手册里0.3%的精度,具体指的是哪一个,是1/3*(1±0.3%)吗?
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