Precision 1V reference

[dolabra]

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 (1.15 KiB) Viewed 1131 times

And I had some boards made from OSHpark

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

(edit: I replaced images of board with renders due to embarrassing spelling errors)

[dolabra]

OMG --- I just noticed I spelled precision wrong! Arg!

[t0mpr1c3]

and reference ;)

[dolabra]

OMG! what a loser!


I couldn't take it --- I removed the board images and replaced with renders from OSHPark!

[t0mpr1c3]

:-D