ST7-STICK45 STMICROELECTRONICS [STMicroelectronics], ST7-STICK45 Datasheet - Page 106

• Manufacturer Part Number: ST7-STICK45
• Description: 8-bit microcontroller with single voltage Flash memory, data EEPROM, ADC, timers, SPI
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

ST7LITE0xY0, ST7LITESxY0
ADC CHARACTERISTICS (Cont’d)
ADC Accuracy with
T
Notes:
1. Data based on characterization results over the whole temperature range, monitored in production.
2. Injecting negative current on any of the analog input pins significantly reduces the accuracy of any conversion being
performed on any analog input.
current on digital input pins degrades ADC accuracy especially if performed on a pin close to the analog input pins.
Any positive injection current within the limits specified for I
accuracy.
–
106/124
Symbol
Analog pins can be protected against negative injection by adding a Schottky diode (pin to ground). Injecting negative
A
= -40°C to 85°C, unless otherwise specified
E
E
E
E
E
E
E
E
E
E
O
G
O
G
T
D
T
D
L
L
Total unadjusted error
Offset error
Gain Error
Differential linearity error
Integral linearity error
Total unadjusted error
Offset error
Gain Error
Differential linearity error
Integral linearity error
2)
2)
2)
2)
V
Parameter
DD
=5.0V
2)
2)
2)
2)
2)
2)
f
f
CPU
CPU
=4MHz, f
=8MHz, f
INJ(PIN)
Conditions
ADC
ADC
and ΣI
=2MHz ,V
=4MHz ,V
INJ(PIN)
DD
DD
=5.0V
=5.0V
in
Section 13.8
Typ
±1
±2
does not affect the ADC
-0.5 / 3.5
-0.5 / +1
-2 / 0
Max
±1
±1
±1
±1
±1
1)
1)
1)
1)
Unit
LSB
LSB