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Hello guys. Please help my Thesis. I want to make Comparators design of sar adc i have built Comparator in LTspice i wanna analysis. But i cant PLEASE HELP ME OUT

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Hello guys. Please help my Thesis. I want to make Comparators design of sar adc i have built Comparator in LTspice i wanna analysis. But i cant PLEASE HELP ME OUT
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Input Offset Voltage, Input-Referred Noise, Regeneration Time, Power Consumption, Kickback Noise, Input Common-Mode Range, Supply Voltage. I need these parameters analysis in LTspice PLEASE HELP ME
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We can't help much unless you let us see more of what you are doing. Upload your .ASC file AND all the other files required to run the simulation, but not .RAW? and .LOG files or pictures,? in a ZIP archive to Files => Temp.

Go to the web page: /g/LTspice/topics. Click on Files in the list on the left. Then click on Temp. Then click on New Upload in the blue box at top left. Click on Upload File in the drop-down menu. Then send a message to tell us that you did that.


On 2025-04-23 08:41, sugaraltan via groups.io wrote:
Hello guys. Please help my Thesis. I want to make Comparators design of sar adc i have built Comparator in LTspice i wanna analysis. But i cant PLEASE HELP ME OUT
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Thanks for the reply. I uploaded my file in FIles named 456.asc. Please check it out.?
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Please don't put uploaded file directly in the Files location. They should be uploaded to Files > Temp, as the instructions say.

I have moved 456.asc to Temp.

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Regards,
Tony

On 23/04/2025 10:07, sugaraltan via groups.io wrote:

Thanks for the reply. I uploaded my file in FIles named 456.asc. Please check it out.?
 

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On 23/04/2025 09:50, sugaraltan via groups.io wrote:
Input Offset Voltage, Input-Referred Noise, Regeneration Time, Power Consumption, Kickback Noise, Input Common-Mode Range, Supply Voltage. I need these parameters analysis in LTspice PLEASE HELP ME
You cannot hope to simulate things like offset voltage if you use ideal ideal models throughout - the devices will all be identical, i.e. zero offset. You also haven't specified any noise parameters in the model, so the simulated noise won't be realistic. The same thing applies to capacitances. First thing you need to do is get proper device models.

There's also an error in you schematic: Out- is shorted to Out+.

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Regards,
Tony
 

On Wed, Apr 23, 2025 at 03:46 AM, @Imprazu wrote four times:
Please help my Thesis. ... PLEASE HELP ME OUT
Golly.? You sound desperate.? It looks like you do not know what you are doing.
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Why should anyone help you write your Thesis?? Isn't that your job?? If you are not capable of it, perhaps you should not attempt to write a Thesis about something you do not know.? A Thesis is supposed to prove that you thoroughly understand your subject matter.? If you don't know it, you should not steal the work from other people.
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Sounds to me like you are a crook (a thief) who wants to steal the work from others.
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Or, prove to us that I am wrong.? By saying that you can't do the analysis, I think you have proven right there that you do not deserve the Thesis.
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Please give us the name, credentials, and address of your Thesis advisor and we will help.
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If someone handed you a physical comparator and some lab equipment, would you be able to measure it and obtain those parameters?? Simulating it starts with knowing how to do it with real hardware.? (There is more to it than just that, but that is where to start.)
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FYI, it is unlikely that your antique LEVEL=1 transistor models with 20 micron channels work correctly with such low voltages.? Most devices made for very low voltages use submicron technology.
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Andy
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