ST7MDT2-EPB2/US STMicroelectronics, ST7MDT2-EPB2/US Datasheet - Page 139
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ST7MDT2-EPB2/US
Manufacturer Part Number
ST7MDT2-EPB2/US
Description
BOARD PROGRAMMING SGL POS ST7
Manufacturer
STMicroelectronics
Type
MCUr
Specifications of ST7MDT2-EPB2/US
Contents
Programmer Board
For Use With/related Products
ST72311, ST72124, ST72314, ST72334
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- Current page: 139 of 153
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8-BIT ADC CHARACTERISTICS (Cont’d)
ADC Accuracy
Figure 99. ADC Accuracy Characteristics
Notes:
1. ADC Accuracy vs. Negative Injection Current:
For I
for each 10K
under worst-case conditions for injection:
- negative injection
- injection to an Input with analog capability, adjacent to the enabled Analog Input
- at 5V V
2. Data based on characterization results with T
3. Data based on characterization results over the whole temperature range.
Symbol
255
254
253
|E
|E
|E
E
E
7
6
5
4
3
2
1
INJ-
O
G
D
T
L
0
V
|
|
|
SSA
=0.8mA, the typical leakage induced inside the die is 1.6µA and the effect on the ADC accuracy is a loss of 1 LSB
Digital Result ADCDR
DD
Total unadjusted error
Offset error
Gain Error
Differential linearity error
Integral linearity error
1
1LSB
supply, and worst case temperature.
E
O
increase of the external analog source impedance. This effect on the ADC accuracy has been observed
2
IDEAL
3
1)
1)
=
Parameter
4
V
---------------------------------------- -
DDA
5
256
1 LSB
–
1)
1)
V
E
SSA
6
1)
T
IDEAL
E
7
L
(2)
E
A
D
=25°C.
253 254 255 256
(3)
V
f
CPU
Typ.
DD
=5V,
=1MHz
(1)
E
2)
G
Max
V
2.0
1.5
1.5
1.5
1.5
DDA
ST72334J/N, ST72314J/N, ST72124J
f
V
(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.
CPU
Typ.
T
O
G
D
L
DD
=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
in
=5.0V,
=8MHz
(LSB
IDEAL
Max
3)
2.0
1.5
1.5
1.5
1.5
)
V
f
CPU
DD
Typ
=3.3V,
=8MHz
Max
3)
2.0
1.5
1.5
1.5
1.5
139/153
Unit
LSB
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