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Associate II
Oct 29, 2026 6:22 AM UTC
Question

What is the architecture of the differential ADC in STM32H750?

Basic SAR ADC is depicted here:

From AN2834, How to optimize the ADC ...

STM32H750 showed it’s ADC block:

Fig 138. from reference manual RM0433

I want to know what is inside this block? Why it’s input signal should biased to 1.65+-10% strictly? But It’s sigle ended arrangement which is simply connect the negative pin to gnd have large common mode input from 0 to Vcc?