@mhdAwskamel Just doing a quick sanity check, I took a look at a circuit I designed some time ago using the 6N137. Notebook says that with an input pulse of 1 mA and a rise time of 500 ns at the input the output's rise time was about an average of 1.3 us (over a few devices.) The output resistor was 22 k and Vcc was 5 V. This tells me that your goal may be achievable. But that you should figure on at least 1 us delay. This cuts into your 5 us margin.
↧