Hi i have a little circuit that must monitor a very small voltage on a shunt resistor (about 1 mV) if the voltage goes over it i must swith the output comparator. (open collector if possible)
the problem is that my supply for the comparator is 12V and the shunt is around 1 to 20V (it is a high side shunt resistor on a variable voltage,) is there any comparator that can handle voltage at input pins higher than the vcc pin?
the problem is that my supply for the comparator is 12V and the shunt is around 1 to 20V (it is a high side shunt resistor on a variable voltage,) is there any comparator that can handle voltage at input pins higher than the vcc pin?