ST7FLITE29 STMICROELECTRONICS [STMicroelectronics], ST7FLITE29 Datasheet - Page 118

• Manufacturer Part Number: ST7FLITE29
• Description: 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, TIMERS, SPI
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

ST7LITE2
ADC CHARACTERISTICS (Cont’d)
Figure 94. ADC Accuracy Characteristics with amplifier enabled
Note: When the AMPSEL bit in the ADCDRL register is set, it is mandatory that f
to 2 MHz. (if f
118/131
Vmax
704
108
Vmin
Vout (ADC input)
0
V
SS
Digital Result ADCDR
62.5mV
1LSB
1
0V
E
O
CPU
2
I DE AL
=8MHz. then SPEED=0, SLOW=1).
3
Noise
=
V
------------------------------- -
4
DD
430mV
1024
–
5
1 LSB
V
SS
E
6
T
IDEAL
E
(OPAMP input)
7
L
Vin
(2)
E
D
701 702 703 704
(3)
(1)
E
G
430mV
(1) Example of an actual transfer curve
(2) The ideal transfer curve
(3) End point correlation line
E
between the actual and the ideal transfer curves.
E
transition and the first ideal one.
E
transition and the last actual one.
E
between actual steps and the ideal one.
E
between any actual transition and the end point
correlation line.
T
O
G
D
L
=Total Unadjusted Error: maximum deviation
=Integral Linearity Error: maximum deviation
=Differential Linearity Error: maximum deviation
=Offset Error: deviation between the first actual
=Gain Error: deviation between the last ideal
V
V
in
in
(OPAMP)
(LSB
IDEAL
)
ADC
be less than or equal