Other Parts Discussed in Thread: LM339
Tool/software:
Hello everyone
I am using LM339LV quad package comparators in BMS application. The comparator is supplied from 5V and the open drain output is pulled up to 3.3V with 10K resistor. Two comparators in the quad package are being used and two are floating.
The - input of the comparator are supplied 900mV through 10K resistor and the + input is supplied 0V through 1K resistor.
The problem is that the amplifier is generating voltage on the input pins, probably by sourcing currents out of the input pins. The voltage rises from 900mV to 1.2V and from 0V to 100mV on the two pins. Appears that around 10uA current is being sourced from the input pins. What could be happening. Please help.
Thank you