Electrical characteristics
STM8S903K3 STM8S903F3
Figure 43: ADC accuracy characteristics
1. Example of an actual transfer curve.
2. The ideal transfer curve
3. End point correlation line
ET = 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.
Figure 44: Typical application with ADC
V
STM8
DD
V
T
V
0.6 V
R
AIN
AIN
AINx
10-bit A/D
conversion
V
T
0.6 V
I
L
± 1 µA
C
C
AIN
ADC
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DocID15590 Rev 8