stm32f103zet6的ref+

在STM32F103ZET6芯片中，ref+是指参考电压的正极。参考电压是用来提高ADC转换的精度的。在引脚数目为100时，为了保证更好的低电压输入精度，连接一个单独的参考电压输入到ref+引脚上。ref+的输入电压范围为2.0V到VDDA。在引脚数为64时，ref+引脚可能没有被引出，实际上ref+和ref-被内部连接到VDDA和VSSA上。\[3\]
#### 引用[.reference_title]
- *1* [基于STM32F103ZET6库函数跑马灯实验](https://blog.csdn.net/qq_51029592/article/details/125371101)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^control_2,239^v3^insert_chatgpt"}} ] [.reference_item]
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- *3* [STM32F103ZET6最小系统板制作指引](https://blog.csdn.net/qq_44737769/article/details/121714950)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^control_2,239^v3^insert_chatgpt"}} ] [.reference_item]
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