Rise-time measurement on 2019-12-16. BNC-cable to 4 GHz LeCroy oscilloscope, DC 50 Ohm termination, 10%-to-90% rise time measurement result is <700 ps.
With input going to LT1711 comparator triggering at 1.0 V (set by
reference ADR423). This edge is buffered by 74AC14 before 1:8
fan-out to output-stages with three 74AC04 inverters in parallel
driving the outputs.