![]() ![]() I hope that makes sense, but to summarize I need to have: Single 3.3V power to the op-amp. I’m trying to offset the input to the ADC so I can do proper measuring starting from 0V to 1.8V. So ideally I’m trying to stay in the boundaries of 0.15V to 1.95V on the input of the ADC and have a middle point 1.05V if possible to be able to measure positive and negative voltages. The full scale of the ADC input (linear) is about 2.4V. It has a dead band from 0V to 0.15V therefore will not measure in this range. There is an issue with the ADC converter of the uC that I’m using. I’m trying to create a little device that will measure voltage 0-32VDC (preferably -32V to +32VDC so in this way no polarity needs to be observed when connecting to voltage source) Im truing to accomplish that by providing an offset of about 0.9V from the output of the differential op-amp. I have something that I thought is a trivial problem and I have been trying to resolve for a while now with no success, thus I decided to reach out to you for help. ![]()
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