I'm experimenting with the O2 sensor in my vehicle and need a little advice on a circuit.
I need a simple circuit to take a 0-1vdc analog signal and convert it to a digital output. I need to be able to adjust the switching point anywhere in the 0-1vdc range and I may need to be able to set the output voltage to be anywhere in the 0-1vdc range. So basically as my input voltage changes if it goes above .4 volts (for example) I want the output to switch from 0 to say .6v and stay there even if the input voltage goes up to 1 volt. I'm not sure I need to be able to adjust the output voltage or not at this point but I know I just need an on/off output of around .5v and I want to be able to offset the O2 signal a bit so the output turns on at varying input voltages.
I believe this is a simple op amp circuit. I would appreciate it if someone already has a diagram for this and would post it. I know of several circuits that accomplish the O2 sensor offset but I want to go about it a little differently.
Thanks for your help.
I need a simple circuit to take a 0-1vdc analog signal and convert it to a digital output. I need to be able to adjust the switching point anywhere in the 0-1vdc range and I may need to be able to set the output voltage to be anywhere in the 0-1vdc range. So basically as my input voltage changes if it goes above .4 volts (for example) I want the output to switch from 0 to say .6v and stay there even if the input voltage goes up to 1 volt. I'm not sure I need to be able to adjust the output voltage or not at this point but I know I just need an on/off output of around .5v and I want to be able to offset the O2 signal a bit so the output turns on at varying input voltages.
I believe this is a simple op amp circuit. I would appreciate it if someone already has a diagram for this and would post it. I know of several circuits that accomplish the O2 sensor offset but I want to go about it a little differently.
Thanks for your help.