Hi collective brain,

I want to generate a pulse/square signal with a few nanoseconds of
rise/fall times. I did this with various PIC's and with FPGA's and I got
around 2ns of rise/fall times which is good but I need to make it simpler
(cheaper).

Now I am trying to implement the same with completely analog components ;

 width ; adjustable between 2ns-10ns
 frequency ; adjustable between 1Hz-200Hz
 amplitude ; adjustable between 5V-12V

I know there are some defacto ways to do this but I feel rusty on the
analog side and would appreciate the guidance of analog experts here. I
know you are out there, don't hide!

Yigit
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