Datasheet
DS12110 Rev 5 163/231
STM32H743xI Electrical characteristics
199
being performed on another analog input. It is recommended to add a Schottky diode (pin to
ground) to analog pins which may potentially inject negative currents.
Any positive injection current within the limits specified for I
INJ(PIN)
and ΣI
INJ(PIN)
in
Section 6.3.15 does not affect the ADC accuracy.
Figure 39. ADC accuracy characteristics (12-bit resolution)
1. Example of an actual transfer curve.
2. Ideal transfer curve.
3. End point correlation line.
4. E
T
= Total Unadjusted Error: maximum deviation between the actual and the ideal transfer curves.
EO = Offset Error: deviation between the first actual transition and the first ideal one.
EG = Gain Error: deviation between the last ideal transition and the last actual one.
ED = Differential Linearity Error: maximum deviation between actual steps and the ideal one.
EL = Integral Linearity Error: maximum deviation between any actual transition and the end point
correlation line.
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