Hi there,I am working on a project in which I have integrated LMP91000 IC.I have an issue while setting the internal zero value of REFCN register.I am using a 3-lead carbon monoxide(CO-AF) amperometric sensor.As per the the criteria I have set it 20% of external reference voltage.But the problem that I have is, I get 0.5v if nothing is connected or for a zero gas reading where I should get 0V instead of 0.5V.
Is there any way I can get to reset it to 0V.