ESP32-C3-Mini-1U ADC0 question.
Posted: Wed Sep 17, 2025 5:53 pm
Hey,
Since all the ADCs on ADC0 are multiplexed to the one SAR, is the offset and gain the same across all the ADC channels?
The reason I ask is that I'm working on a PCB that's going to use 4/5 of the ADCs on ADC0. I was thinking I could add a simple circuit that would calculate the offset and gain of ADC0 at boot to calibrate the other four channels.
Hope my question was clear!
MB
Since all the ADCs on ADC0 are multiplexed to the one SAR, is the offset and gain the same across all the ADC channels?
The reason I ask is that I'm working on a PCB that's going to use 4/5 of the ADCs on ADC0. I was thinking I could add a simple circuit that would calculate the offset and gain of ADC0 at boot to calibrate the other four channels.
Hope my question was clear!
MB