This whole thread seems rather silly.
The first problem that needs to be solved is to get a more appropriate Sensor.

How does your "Sensor" work ????
What is it designed to "Sense" ???? (not "Voltage")
What needs to happen when the Sensor senses an input ???? ( Not "I need a Square-Wave" ).
What is this entire contraption producing as a final product ???? ( nobody has a clue)

The question has been asked, and then ignored, at least ~6-times in this Thread,
what is this mysterious "Sensor" that nobody has ever heard of,
that creates Voltage-Spikes when an outside Voltage is applied to it ???????

What is the purpose of this entire device ? including the "Sensor" and the Square-Wave-Output ???
Is it a Military Secret Project or something ?
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Hi

I am sorry if I had not answered your query. Here are my responses:

what is this mysterious "Sensor" that nobody has ever heard of,
that creates Voltage-Spikes when an outside Voltage is applied to it ???????
It is a magnetic material based sensor that responds to any external stimulus. The oscillations are not because of the electronics but more because of the spins of the electrons that change their quantum state on voltage stimulus.

What is the purpose of this entire device? including the "Sensor" and the Square-Wave-Output ???

The purpose will be finally to have a working chip that can make computing more efficient, and data encryption more secure.
And Yes, it is a project that is at its initial stages but not funded by the military but multiple funding agencies and industries.

Hopefully, that answers your questions, and I am sorry if I did not provide an update.

Thanks
D

 

hi D,
If in your future LTS work you need to input noise data etc into a test circuit, consider using the 'wav' file as a source, it is much faster than constructing the circuit hardware to create a 'noise' type signal.
Sampling rates for the wav can be high, I use 100kB for some work, also the sim runs faster..
E
Look here:
https://www.allaboutcircuits.com/technical-articles/ltspice-simulation-using-wav-files/

 

Crutschow is right about a simple comparator circuit being the best choice. It certainly will be. And adding a second device to derive a trigger point voltage will make the system work over a very wide range of input voltages.

 

No reply, one of the Mods might think I was being a "meany".
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No reply, one of the Mods might think I was being a "meany".
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No, you were alright. There is no harm in asking a question... Hopefully, I have answered your questions.
Thanks to all.

 

Adding a capacitor in series with the input to the comparator will allow using a fixed reference voltage and simplify the design quite a bit.