Electronics > Beginners
1V Reference @ 1ppm
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Rafael:
Hello,

Does anyone have any suggestions on how to find / build a 1v @ 1ppm reference?

Thanks a lot!
Wimberleytech:

--- Quote from: Rafael on January 26, 2019, 12:22:53 am ---Hello,

Does anyone have any suggestions on how to find / build a 1v @ 1ppm reference?

Thanks a lot!

--- End quote ---

I assume you mean: 1ppm/°C.  Over what temperature range???
Rafael:

--- Quote from: Wimberleytech on January 26, 2019, 12:45:42 am ---
--- Quote from: Rafael on January 26, 2019, 12:22:53 am ---Hello,

Does anyone have any suggestions on how to find / build a 1v @ 1ppm reference?

Thanks a lot!

--- End quote ---

I assume you mean: 1ppm/°C.  Over what temperature range???


--- End quote ---

You're right, sorry to forget this detail.

Range, around 23°C... I can imagine a hard task!

Thanks!
Wimberleytech:

--- Quote from: Rafael on January 26, 2019, 12:22:53 am ---Hello,

Does anyone have any suggestions on how to find / build a 1v @ 1ppm reference?

Thanks a lot!

--- End quote ---

https://www.apexanalog.com/resources/products/vre3050ds.pdf
Wimberleytech:

--- Quote from: Rafael on January 26, 2019, 12:50:25 am ---
--- Quote from: Wimberleytech on January 26, 2019, 12:45:42 am ---
--- Quote from: Rafael on January 26, 2019, 12:22:53 am ---Hello,

Does anyone have any suggestions on how to find / build a 1v @ 1ppm reference?

Thanks a lot!

--- End quote ---

I assume you mean: 1ppm/°C.  Over what temperature range???


--- End quote ---

You're right, sorry to forget this detail.

Range, around 23°C... I can imagine a hard task!

Thanks!

--- End quote ---

Yes, it is challenging.  You must curvature compensate a bandgap reference...and pay attention to EVERYTHING.

Solution: Buy it.  I posted an example product.

If you limit the range of temperatures ("around 23°C"), you do not have to do curvature compensation. 
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