Who can help me with these parameters?

overdrive the input by 5mV and the output will go high within 15ns

overdrive multiple comparators at the same time and they will flip within 3ns of each other

OK, now you actually asked a question that takes some thought, mostly because the datasheet is poorly written. It looks like the latch is active low. When you disable the latch, you move the pin from low to high. The comparator output (internal signal) can now propagate. The propagation typically takes 10ns.

as above

This refers to the latch. The input (really the internal comparator signal) needs to be steady for typically 2ns.

The internal comparator signal needs to be steady for typically 1ns for the proper value to be latched

When the latch pin is high, the output reflects the internal comparator signal. The pin must be high typically 10ns. I don't quite follow this unless they are doing some power savings when the signal is latched.

Overdrive is the voltage above the built-in offset of the comparator. Overdrive is a test condition rather than a parameter of the chip.

A good thing this chip is history, The datasheet is crap.

Readily comprehendible to anyone with experience using high speed comparators...

Whatever. The datasheet is full of sketchy GBDs.

of chip MAX900. There are some parameters I do

I am not quite sure about "Overdrive ". What does "built-in offset" mean? Please continue to help me.

nt of chip MAX900. There are some parameters I do

The comparator will have some offset error, i.e. it is not perfect. Generally the offset is small, so in practice you would apply 5mV in either direction to the differential input to test the device. Technically, this should be 5mV beyond the offset.

Comparator speed is related to the overdrive. If you only had a microvolt of overdrive, the comparator would take a long time to flip.

A good datasheet explains all the test conditions, including timing diagrams. This is an example of a poorly written datasheet. I'm sure it generated a few calls to Maxim apps.