stm8af6166t STMicroelectronics, stm8af6166t Datasheet - Page 71

• Manufacturer Part Number: stm8af6166t
• Description: Automotive 8-bit Mcu, With Up To 128 Kbytes Flash, Eeprom, 10-bit Adc, Timers, Lin, Can, Usart, Spi, I2c, 3 V To 5.5 V
• Manufacturer: STMicroelectronics

STM8AF61xx, STM8AF51xx
11.3.8
10-bit ADC characteristics
Subject to general operating conditions for V
specified.
Table 38.
1. During the sample time the input capacitance C
Table 39.
1. ADC accuracy vs. negative injection current: Injecting negative current on any of the standard (non-robust)
Symbol
Symbol
t
C
t
f
CONV
V
t
STAB
ADC
source. The internal resistance of the analog source must allow the capacitance to reach its final voltage
level within t
the conversion result. Values for the sample clock t
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
S
ADC
|E
|E
|E
|E
|E
AIN
(1)
O
G
D
T
L
|
|
|
|
|
ADC clock frequency
Conversion voltage range
Internal sample and hold
capacitor
Minimum sampling time
Wake-up time from standby
Minimum total conversion time
(including sampling time, 10-bit
resolution)
Total unadjusted error
Offset error
Gain error
Differential linearity error
Integral linearity error
ADC characteristics
ADC accuracy with f
S.
INJ(PIN)
After the end of the sample time t
and ΣI
Parameter
Parameter
(1)
(1)
INJ(PIN)
in
(1)
(1)
(1)
Section 11.3.5
(1)
ADC
= 2 MHz, R
AIN
S
, changes of the analog input voltage have no effect on
S
(3 pF max) can be charged/discharged by the external
DDA
f
f
does not affect the ADC accuracy.
depend on programming.
ADC
ADC
Conditions
Conditions
, f
= 2 MHz
= 2 MHz
MASTER
AIN
< 10 kΩ , V
, and T
V
Min
SSA
A
1
Electrical characteristics
DDA
unless otherwise
Typ
1.5
1.5
1.5
1
1
= 5 V
Typ
0.5
14
3
7
7
Max
V
Max
3
2
2
2
2
DDA
2
1/f
Unit
LSB
MHz
Unit
pF
µs
µs
µs
71/84
V
ADC