Precision 1V reference

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Precision 1V reference

Postby dolabra » Mon Nov 19, 2012 12:41 pm

I confess, I only have crappy meters. But I often have the need to calibrate ADC measurement, and I would like to calibrate my meters so they are all in the same ballpark. So I have built myself a simple, cheap, and reasonably accurate reference. It is based on a ADR510 voltage reference. According to the specs it is 1V +/- 3.5mV, 70ppm/C.

screenshot-1.png
screenshot-1.png (1.15 KiB) Viewed 1784 times


And I had some boards made from OSHpark
large_i.png

large_i (1).png


Checking it with my crappy meters, it appears to work.

2012-11-19_11-48-14_892.jpg


(edit: I replaced images of board with renders due to embarrassing spelling errors)
Last edited by dolabra on Mon Nov 19, 2012 1:46 pm, edited 1 time in total.
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Re: Precision 1V reference

Postby dolabra » Mon Nov 19, 2012 12:44 pm

OMG --- I just noticed I spelled precision wrong! Arg!
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Re: Precision 1V reference

Postby t0mpr1c3 » Mon Nov 19, 2012 1:09 pm

and reference ;)
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Re: Precision 1V reference

Postby dolabra » Mon Nov 19, 2012 1:36 pm

OMG! what a loser!


I couldn't take it --- I removed the board images and replaced with renders from OSHPark!
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Re: Precision 1V reference

Postby t0mpr1c3 » Mon Nov 19, 2012 9:44 pm

:-D
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