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Comparator rising/falling edge propagation delay

Question asked by freninger.patrick on May 22, 2015
Latest reply on May 25, 2015 by waclawek.jan
I am using a STM32L152RC microcontroller and have to detect the length of pulses of about 0.7 V and 3 μs using the COMP2 comparator. At 2.7 V VCC the worst case propagation delay is 2 μs in fast mode. A minimum delay is not specified. The worst imaginable interpretation suggests that my pulse could be shortened or streched to 1 μs or 5 μs.
Can I make any assumptions about the equality of the propagation delay for the rising and falling edge?
Note that my overdrive is not 10 mV as used for characterization but at least 300 mV in both directions. How does this influence the worst case propagation delays?