STM8AP628ATAX View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
STM8AP628ATAX
STMicroelectronics
STM8AP628ATAX Datasheet PDF : 125 Pages
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Electrical characteristics
STM8AF526x/8x/Ax STM8AF6269/8x/Ax
Symbol
Table 44. ADC accuracy for VDDA = 5 V
Parameter
Conditions
Typ
Max(1) Unit
|ET|
Total unadjusted error(2)
|EO|
Offset error(2)
|EG|
Gain error(2)
|ED|
Differential linearity error(2)
|EL|
Integral linearity error(2)
|ET|
Total unadjusted error(2)
|EO|
Offset error(2)
|EG|
Gain error(2)
|ED|
Differential linearity error(2)
|EL|
Integral linearity error(2)
fADC = 2 MHz
fADC = 4 MHz
1.4
0.8
0.1
0.9
0.7
1.9(4)
1.3(4)
0.6(4)
1.5(4)
1.2(4)
3(3)
3
2
1
1.5
4(4)
4(4)
3(4)
2(4)
1.5(4)
LSB
1. Guaranteed by characterization results, not tested in production.
2. ADC accuracy vs. injection current: Any positive or negative injection current within the limits specified for
IINJ(PIN) and ΣIINJ(PIN) in Section 10.3.6 does not affect the ADC accuracy.
3. TUE 2LSB can be reached on specific sales types on the whole temperature range.
4. Target values.
Figure 44. ADC accuracy characteristics
1023
1022
1021
7
6
5
4
3
2
1
1LSBIDEAL = V-----D-----D----A1----0--–-2---4V-----S----S-----A--
(2)
ET
EG
(3)
(1)
EO
EL
ED
1 LSBIDEAL
0 1234567
VSSA
1021102210231024
VDDA
1. Example of an actual transfer curve
2. The ideal transfer curve
3. End point correlation line
EEEEElinTOGDLe=====.
Total unadjusted error: Maximum deviation between the actual and the ideal transfer curves.
Offset error: Deviation between the first actual transition and the first ideal one.
Gain error: Deviation between the last ideal transition and the last actual one.
Differential linearity error: Maximum deviation between actual steps and the ideal one.
Integral linearity error: Maximum deviation between any actual transition and the end point correlation
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DocID14395 Rev 15
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