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| 型号： | STM8AF52AATDY |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PQFP80 |
| 封装： | 14 X 14 MM, ROHS COMPLIANT, LQFP-80 |
| 文件页数： | 113/120页 |
| 文件大小： | 2236K |
| 代理商： | STM8AF52AATDY |
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Electrical characteristics
STM8AF52/62xx, STM8AF51/61xx
Doc ID 14395 Rev 7
Figure 45.
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.
Table 60.
ADC accuracy for VDDA = 5 V
Symbol
Parameter
Conditions
Typ
Max(1)
1.
Max value is based on characterization, not tested in production.
Unit
|ET|
Total unadjusted error(2)
2.
ADC accuracy vs. injection current: Any positive or negative injection current within the limits specified for
fADC = 2 MHz
1.4
3(3)
3.
TUE 2LSB can be reached on specific salestypes in the whole temperature range.
LSB
|EO|
Offset error(2)
0.8
3
|EG|
Gain error(2)
0.1
2
|ED|
Differential linearity error(2)
0.9
1
|EL|
Integral linearity error(2)
0.7
1.5
|ET|
Total unadjusted error(2)
fADC = 4 MHz
1.9(4)
4. Target values.
4(4)
|EO|
Offset error(2)
4(4)
|EG|
Gain error(2)
3(4)
|ED|
Differential linearity error(2)
2(4)
|EL|
Integral linearity error(2)
1.5(4)
EO
EG
1LSBIDEAL
1LSB
IDEAL
V
DDA
V
SSA
–
1024
-----------------------------------------
=
1023
1022
1021
5
4
3
2
1
0
7
6
1
234
567
1021102210231024
(1)
(2)
ET
ED
EL
(3)
VDDA
VSSA
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