you should have posted a diagram or schematic so we all can see your application. by the specs i don't see amy problem if it is running at 100kc. it has a 5mv offset and 5 mv drive and looks like if the input drive is 100mv it streches to 1.5usec that relates to 666kc max operation with 5mv overdrive it is more the 1 Mkc. then basicly it is drive input as a function of overdrive.now at these max speed don't expect to look like a square wave not unless you provide some hysterisis which will make square and reduce freq. of operation.If you want speed you should have choosena lm119,219,319. same packgage but only 2 per.conclusion need overdrive to make it square need less drive to make fast take your pick.