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我在使用ADS8513 芯片进行数据采集。按照手册，选择输入量程为0~4V，但是通过SPI读回的数据，与手册上描述的范围不一致。
请问，0~4V回读数据对应的十六进制是如何计算的？
这可以设置成多种输入模式: The converter can be configured for a variety of input ranges including ± 10V, ± 5V, 0V to 10V, and 0.5V to 4.5V.
不同模式, 转换结果不同, 但输出线性度应该是没有错的
