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STM32L053 Folha de dados(PDF) 94 Page - STMicroelectronics

Nome de Peças STM32L053
Descrição Electrónicos  Reset and supply management
PDF  132 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32L053 Folha de dados(HTML) 94 Page - STMicroelectronics

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Electrical characteristics
STM32L053x6 STM32L053x8
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DocID025844 Rev 7
Figure 27. Typical connection diagram using the ADC
1. Refer to Table 62: ADC characteristics for the values of RAIN, RADC and CADC.
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 28 or Figure 29,
depending on whether VREF+ is connected to VDDA or not. The 10 nF capacitors should be
ceramic (good quality). They should be placed as close as possible to the chip.
Figure 28. Power supply and reference decoupling (VREF+ not connected to VDDA)



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