07-28-2025, 11:32 AM
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).
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).
