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FAQ
How many bits are required to present the accuracy and linearity of conversions when an analog-to-digital converter (ADC) in the NuMicro® series operates at the highest speed? Issue Date：2015-05-27
The absolute accuracy formula is: N - log2 (EA), wherein EA refers to the absolute error; N refers to converter bits. The linearity formula is: N - log2 (INL), wherein INL refers to the Integral nonlinearity error; N refers to converter bits.
Refer to the ADC electrical characteristics chapter in the relevant Datasheet. The M051DN/DE series is used as example in the following table for illustration.
In the specification, the maximum absolute error is 4 LSB, and the maximum Integral nonlinearity error is 4 LSB.
Thus, the absolute accuracy is 12 bit - log2 (4) = 10 bit.
The linearity is 12 bit - log2 (4) = 10 bit.
For other series, please refer to the relevant Datasheet.