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LVTTL to NIM Translator with AD8009

I´m designing a LVCMOS to NIM signal translator, requirements of the circuit are

Input frequency from 10KHz to 40Mhz

Input 3.3V LVCMOS

Output  logic "0" 0mA  or 0V; logic  "1" 18mA or 1V

I decide to use AD8009 because it declares a 5500V/us slew rate but during simulations I found a delay of approx 1ns and some signal distortion, I´d like to have a delay between input and output as little as possible ( 100ps or less)

How can I improve the response?

In simulation green is input, red is output current and blue voltage current

Thanks for your help