參數(shù)資料
型號： ST72254G1B3
英文描述： 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY. ADC. 16-BIT TIMERS. SPI.
中文描述： 8位單電壓閃存微控制器。 ADC的。 16位定時器。的SPI。
文件頁數(shù)： 34/140頁
文件大小： 1349K
代理商： ST72254G1B3
ST72104G, ST72215G, ST72216G, ST72254G
129/140
8-BIT ADC CHARACTERISTICS (Cont’d)
ADC Accuracy
Figure 96. ADC Accuracy Characteristics
Notes:
1. ADC Accuracy vs. Negative Injection Current:
For IINJ-=0.8mA, the typical leakage induced inside the die is 1.6A and the effect on the ADC accuracy is a loss of 1 LSB
for each 10K
increase of the external analog source impedance. This effect on the ADC accuracy has been observed
under worst-case conditions for injection:
- negative injection
- injection to an Input with analog capability, adjacent to the enabled Analog Input
- at 5V VDD supply, and worst case temperature.
2. Data based on characterization results with TA=25°C.
3. Data based on characterization results over the whole temperature range.
Symbol
Parameter
VDD=5V,
2)
fCPU=1MHz
VDD=5.0V,
3)
fCPU=8MHz
VDD=3.3V,
3)
fCPU=8MHz
Unit
Min
Max
Min
Max
Min
Max
|ET|
Total unadjusted error 1)
2.0
LSB
EO
Offset error 1)
1.5
EG
Gain Error 1)
1.5
|ED|
Differential linearity error 1)
1.5
|EL|
Integral linearity error 1)
1.5
EO
EG
1LSBIDEAL
1LSB
IDE AL
V
DDA
V
SSA
–
256
-----------------------------------------
=
Vin (LSBIDEAL)
(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.
Digital Result ADCDR
255
254
253
5
4
3
2
1
0
7
6
123
456
7
253 254 255 256
(1)
(2)
ET
ED
EL
(3)
VDDA
VSSA
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST72254G1B3/XXX 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, IC INTERFACES
ST72254G1B5 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY. ADC. 16-BIT TIMERS. SPI.
ST72254G1B5/XXX 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, IC INTERFACES
ST72254G1B6 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY. ADC. 16-BIT TIMERS. SPI.
ST72254G1B6/XXX 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, IC INTERFACES
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