Appendix B
570
The following formulas are used:
Calculation of DAC DeviceLSB
The end point method assumes a straight line between the first
and last measured value.
The other two methods consider all the measured values and
derive the DeviceLSB from two sorts of linear regression
calculations.
DAC Integral Non-Linearity
Integral non-linearity (INL) measures the deviation of each output
value from a calculated straight line.
The straight line can be drawn as a best-fit line or between the end
points as shown below:
Minimum RMS method:
Zero-point method:
End point method: n
s
= # of sampled points
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