ST7FLITE02Y1B6 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
ST7FLITE02Y1B6
STMicroelectronics
'ST7FLITE02Y1B6' PDF : 124 Pages View PDF
ST7LITE0xY0, ST7LITESxY0
ADC CHARACTERISTICS (Cont’d)
Figure 84. ADC Accuracy Characteristics with Amplifier disabled
Digital Result ADCDR
255
254
253
1LSBIDEAL
=
V-----D-----D----A------–----V-----S----S-----A--
256
(2)
7
ET
(3)
6
5
EO
EL
4
3
ED
2
1
1 LSBIDEAL
EG
(1)
0
1234567
VSSA
253 254 255 256
VDDA
(1) Example of an actual transfer curve
(2) The ideal transfer curve
(3) End point correlation line
ET=Total Unadjusted Error: maximum deviation
between the actual and the ideal transfer curves.
EO=Offset Error: deviation between the first actual
transition and the first ideal one.
EG=Gain Error: deviation between the last ideal
transition and the last actual one.
ED=Differential Linearity Error: maximum deviation
between actual steps and the ideal one.
EL=Integral Linearity Error: maximum deviation
between any actual transition and the end point
correlation line.
Vin (LSBIDEAL)
Figure 85. ADC Accuracy Characteristics with Amplifier enabled
Digital Result ADCDR
EG
(1) Example of an actual transfer curve
(2) The ideal transfer curve
(3) End point correlation line
n+7
n+6
n+5
EO
n+4
n+3
n+2
n+1
(2)
ET
(3)
(1)
EL
ED
1 LSBIDEAL
ET=Total Unadjusted Error: maximum deviation
between the actual and the ideal transfer curves.
EO=Offset Error: deviation between the first actual
transition and the first ideal one.
EG=Gain Error: deviation between the last ideal
transition and the last actual one.
ED=Differential Linearity Error: maximum deviation
between actual steps and the ideal one.
EL=Integral Linearity Error: maximum deviation
between any actual transition and the end point
correlation line.
n=Amplifier Offset
0
1234567
VSS
100 101 102 103
250 mV
Vin (LSBIDEAL)
Note: When the AMPSEL bit in the ADCDRL register is set, it is mandatory that fADC be less than or equal
to 2 MHz. (if fCPU=8MHz. then SPEED=0, SLOW=1).
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