Square wave output topology

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giuliamar

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Hello,
I have a differential input sinusoidal 200mV to 1.4 volt swing and I want to have at the output a 0 to 1 volt square wave . This circuit should work in 4 GHz. Which do you think is the best kind of topology for this application? I saw that comparators would be a solution but I am not sure.

Thanks for your replies!
 

You could use an LVDS receiver and add appropriate resistors to scale the voltages. It would be a lot less expensive than a 4 GHz comparator (if you can even find one.)
 

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