Other Parts Discussed in Thread: LM139, LM339
Hi Team,
Can you please help us regarding our customer's inquiry below.
I have a technical question regarding the LM139 which is a very old part. Please see attached. Can you explain what this means because normally BOTH inputs should stay within the common mode range - both top and bottom of the range. I am concerned mainly with the TOP end of the range (VCC-1.5). I am putting 9VDC on the POSITIVE pin of one of the comparators and 5VDC on the MINUS of the same comparator - the VCC supply voltage is 8.5VDC.
Regards,
Danilo