Am I reading the datasheet to the TLV3702? It says that the input
> voltages can exceed the rail voltage? Here is the datasheet.
>
>formatting link
>
> If that is the case does anyone know of any other comparators that are
> capable of this and can operate off a single supply upto 12v?
> Preferably cheaper:).I've been wading through Digikey and that's the
> only one I can find.
>
> I know it's slow but I don't need nanosecond transitions uS are good
> enough.
Linear makes the LT1716, inputs can go to 44 v regardless of supply, according to the datasheet. Looks like it costs a little more than the TI comparator. I cross-posted this to some other newsgroups in hopes of hearing of other high-side comparators. I didn't know about the TLV370x until I saw your post. That's a real micropower chip. Take a look at the graphs for output. You really don't want to put much of a load on it.
You also have the option of using a high-side op amp as a comparator, especially since you don't need nanosecond response times. FET op amps like the TL08x are very common and fairly cheap. You can even get them with nulling pins.