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STM32F303VB 데이터시트(PDF) 111 Page - STMicroelectronics

부품명 STM32F303VB
상세설명  ARM Cortex-M4F 32b MCUFPU, up to 256KB Flash48KB SRAM
PDF  133 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
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STM32F303VB 데이터시트(HTML) 111 Page - STMicroelectronics

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STM32F302xx/STM32F303xx
Electrical characteristics
Doc ID 023353 Rev 5
111/133
Figure 33.
Typical connection diagram using the ADC
1.
Refer to Table 66 for the values of RAIN.
2.
Cparasitic represents the capacitance of the PCB (dependent on soldering and PCB layout quality) plus the
pad capacitance (roughly 7 pF). A high Cparasitic value will downgrade conversion accuracy. To remedy
this, fADC should be reduced.
General PCB design guidelines
Power supply decoupling should be performed as shown in Figure 11. The 10 nF capacitor
should be ceramic (good quality) and it should be placed as close as possible to the chip.
AINx
IL±1 μA
0.6 V
VT
RAIN(1)
Cparasitic
VAIN
0.6 V
VT
RADC
12-bit
converter
CADC
Sample and hold ADC
converter



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