Hi,
I just saw your headline - and didn´t open the datasheet
--> yes it´s a comparator.
It "looks" or you "know"? this are different things.
Reading the datasheet gives "knowledge"
On the first page it says:
"The output stage includes a class “B” pull-up current
source, eliminating the need for an external resistive
pull-up and saving power. Output voltage swings to within
35mV of the negative supply and 55mV of the positive
supply, which makes the comparator a good choice for
low voltage single supply operation."
Additionally in the "electrical specification table" it says:
ISC + Output Source Current VOVERDRIVE = 5mV, VOUT = –14V l 70 105 μA
--> So every comparator actively drives output current when output is HIGH. --> It´s not a true "open drain" output.
But it is relatively low current, thus the LOW voltage should be less than 0.3V.
Please disconnect the negative feedback resistors. Comparators are not meant to operate with negative feedback.
Tell us what happens.
Klaus