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jiangfan
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2021-05-23
2024-11-21
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Re: About the negative ref voltage supply to STM32H753ZI
2024-11-20
refer to chapter 6.3.20 of datasheet
Re: About the negative ref voltage supply to STM32H753ZI
2024-11-20
datasheet
Re: About the negative ref voltage supply to STM32H753ZI
2024-11-20
if understand correctly, NUCLEO-H753ZI board does not support negative ADC input if ADC input directly connected to STM32H753ZI pin. User may use OPAMP to shift negative input ~ positive input => 0 ~ Vdda, for example -5V ~ +5V => 0V ~ 3.3V.
Re: About the negative ref voltage supply to STM32H753ZI
2024-11-20
VREF+ max is Vdda (Max 3.6V), so, I suppose VREF- min is -3.6V
Re: About the negative ref voltage supply to STM32H753ZI
2024-11-20
Refer to chapter 9 Ordering information, for part number with VREF-
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