ADC122S021在3V基准电源供电情况下,采集精度如何?看手册上说的INL和DNL都在零点几个LSB范围,但是实际使用,效果怎么样的?能不能精准到到零点几毫伏或者一毫伏?
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ADC122S021在3V基准电源供电情况下,采集精度如何?看手册上说的INL和DNL都在零点几个LSB范围,但是实际使用,效果怎么样的?能不能精准到到零点几毫伏或者一毫伏?
ADC的精度不可能高于LSB的大小。 理想情况下LSB的大小=输入满量程Vfs/2的N次方。 但实际上转换器内部还有一定的噪声。