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AFE4490：.

gcy7060
Prodigy 10 points
Part Number: AFE4490

使用AFE4490黑暗环境下光电二极管探测前四个寄存器得到的数据在-0.6左右波动是正常现象吗？将光电二极管换成电阻也是同样的现象，都在-0.6V。当逐渐增大LED电流时，输出结果线性上移，但是上移到+1.2之后，继续增大LED电流，输出数据为负，之后按此操作，输出结果依旧线性上移，ADC输出到达最大值之后不应该饱和吗，为什么会回到最低值？