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STM32L071VB Folha de dados(PDF) 97 Page - STMicroelectronics

Nome de Peças STM32L071VB
Descrição Electrónicos  Access line ultra-low-power 32-bit MCU ARM-based Cortex-M0, up to 192KB Flash, 20KB SRAM, 6KB EEPROM, ADC
PDF  136 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32L071VB Folha de dados(HTML) 97 Page - STMicroelectronics

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STM32L071xx
Electrical characteristics
107
Figure 31. 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 32 or Figure 33,
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 32. Power supply and reference decoupling (VREF+ not connected to VDDA)



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