I'm making an air/fuel ratio gauge out of one to read my o2 sensor. i've screwed around with the chip for three days and it wont behave with my tolerances. I want the chip to light led1 at .37V and led10 at .55V, that is a .18V range. is the chip stable with such a low voltage range? I want led6 to light at .47V(optimum A/F mixture signal), each light is .02V apart basically. how can i do this? will i need to amplify the input signal to something the chip can detect better? how would you do it?