STM8S003F3 STM8S003K3
Electrical characteristics
1. Data based on characterization results, not tested in production.
2. ADC accuracy vs. negative injection current: Injecting negative current on any of the analog input pins
should be avoided as this significantly reduces the accuracy of the conversion being performed on another
analog input. It is recommended to add a Schottky diode (pin to ground) to standard analog pins which may
potentially inject negative current. Any positive injection current within the limits specified for IINJ(PIN) and
ΣIINJ(PIN) in Section 9.3.6 does not affect the ADC accuracy.
Table 47. ADC accuracy with R
Parameter
< 10 kΩ R , V = 3.3 V
AIN DD
AIN
Symbol
Conditions
Typ
Max(1)
Unit
fADC = 2 MHz
fADC = 4 MHz
fADC = 2 MHz
fADC = 4 MHz
fADC = 2 MHz
1.6
1.9
1
3.5
4
|ET|
Total unadjusted error(2)
Offset error(2)
2.5
2.5
3
|EO|
|EG|
|ED|
|EL|
1.5
1.3
2
Gain error(2)
LSB
f
ADC = 4 MHz
3
fADC = 2 MHz
fADC = 4 MHz
fADC = 2 MHz
fADC = 4 MHz
0.7
0.7
0.6
0.8
1.0
1.5
1.5
2
Differential linearity error(2)
Integral linearity error(2)
1. Data based on characterization results, not tested in production.
2. ADC accuracy vs. negative injection current: Injecting negative current on any of the analog input pins
should be avoided as this significantly reduces the accuracy of the conversion being performed on another
analog input. It is recommended to add a Schottky diode (pin to ground) to standard analog pins which may
potentially inject negative current. Any positive injection current within the limits specified for IINJ(PIN) and
ΣIINJ(PIN) in Section 9.3.6 does not affect the ADC accuracy.
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