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How to calculate ADC voltage input? - Printable Version

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How to calculate ADC voltage input? - rrfals - 07-28-2025

Hi everyone,

I'm using the KC868-A16- board and its on-board analog input circuit. I've observed a resistive divider (R1=5.1K, R2=10K) connected to an op-amp, which then feeds into the ADC.  Does this on-board op-amp alter the voltage coming from the resistive divider for measurement purposes? Or just for protection? I'm using Vout = Vin * R2/(R1+R2).


RE: How to calculate ADC voltage input? - admin - 07-28-2025

here is A6v3 ADC diagram