[moved] Latch-up frequency of comparator

What's a "latch-up frequency"?
I've heard of a comparator having a response time: but never a latch-up frequency.

I wonder whether this is really asking for the frequency at
which the kooky input network starts to allow output toggle
instead of sitting there doing nothing.

Not that I know all about what causes latch-up, but I understand it can occur when the input terminals are exposed to a voltage outside the supply rails. In your schematic this might happen, if the input receives a sufficiently high frequency, at sufficient amplitude. (Slower frequencies are blocked by the high-pass filter, formed by the RC network.)

A low-pass filter is at the op amp's lower input. This complicates things, of course.

I don't think anything about latchup sensitivity can be
deduced from the info provided. Physical design features
are largely what matter, one part can be made to latch up
with a few mA of pin-substrate current and another, never
at a hundred mA.

I think it's a mis-expression of the real question, whatever
that might be.