STM8S105C4B3 STMICROELECTRONICS [STMicroelectronics], STM8S105C4B3 Datasheet - Page 100

• Manufacturer Part Number: STM8S105C4B3
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Electrical characteristics
100/127
Symbol
Symbol
|E
|E
(1)
in production.
(2)
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 I
port pin characteristics section does not affect the ADC accuracy.
|E
|E
|E
|E
D
L
T
O
G
D
Data based on characterisation results for LQFP80 device with V
ADC accuracy vs. negative injection current: Injecting negative current on any of the
|
|
|
|
|
|
Parameter
Parameter
Differential linearity error
Integral linearity error
Total unadjusted error
Offset error
Gain error
Differential linearity error
Table 47: ADC accuracy with R
(2)
(2)
DocID14771 Rev 9
(2)
(2)
(2)
(2)
Conditions
Conditions
f
f
f
f
f
f
f
f
f
f
f
f
f
f
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
AIN
= 6 MHz
= 2 MHz
= 4 MHz
= 6 MHz
= 2 MHz
= 4 MHz
= 6 MHz
= 2 MHz
= 4 MHz
= 2 MHz
= 4 MHz
= 2 MHz
= 4 MHz
= 2 MHz
< 10 kΩ R
INJ(PIN)
AIN
, V
Typ
Typ
0.8
0.7
0.7
0.8
0.6
0.6
0.6
1.1
1.6
0.7
1.3
0.2
0.5
0.7
DDA
and ΣI
REF+
= 3.3 V
/V
INJ(PIN)
Max
Max
2.5
1.5
1.5
1.5
1.5
1.5
1.5
2
2.5
1.5
2
1.5
2
1
REF-
STM8S105xx
(1)
(1)
, not tested
in the I/O
Unit
Unit
LSB