Honeywell looking to drive the input of an LM119 with +/-15V signal powered off of single 5V supply. The LM119 datasheet seems to indicate that the max input voltage is VDD (5V in this case). However, there is a question regarding, if this voltage limit is really based on limiting some current flowing into the input pins or some other limitation. They have a 10k resistor in series with inputs and this design is an older one, so we assumed that the resistors were put there for protection.
Is there an issue if they applied a 15V signal to the LM119 input (assume other input is at 2.5V), but with a 10k resistor in series?
Shawn