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A Comparator that has a current threshold on it's input , will NOT switches the state of the comparators output if you apply a voltage from 1 volt to 20 volts on the input. It will only work if you apply a current that is higher than the threshold on it's input.
When looking at a schematic of comparators, how can you tell which comparators have a threshold that is for current and not a voltage threshold?
2.) Measure the time difference from a comparators input and output , to measure how long it takes for the comparators input threshold to be tripped to switches the comparators output
What is this called? its not slew rate or propagation delay , its a time measurement on how FAST the comparator switches the output compared from the threshold of the input