So far I've never had size constraints and my staples were logic devices such as the HCNW137 series. Now I need one that ideally doesn't require a logic supply on the output, rise/fall times well under 1usec even when not fed more than 1mA into the LED, as small as possible. No more than about 0.150" wide and 0.250" long. Isolation around 2kV RMS is fine.
This would be at the size pain threshold but as usual is way too slow:
I went through scores of them and all in the several usec. Any sub-microsecond ones?
Unfortunately the bases aren't pipe out on these so not speed tricks :-(
What I want to do is ferry a fast PWM across a barrier, 100kHz range, needs to be somewhat accurate. I could do the transformer plus NRZ thing but that gets old and not enough space.