Barbouri has updated his voltage reference board design:
Quad Voltage Reference
This is my version 2 board update, which incorporates supply voltage regulation, over-current protection, and trimmer for the 5.000 volt reference all on the same board.
The new board uses a LM2937IMPX-10, which is a positive linear voltage regulator IC with a 10V output at 400mA in a SOT-223-4 package.
Barbouri has shared project the project on OSH Park:
Vref-4 Version 2.0 ext Pwr
![Order from OSH Park](https://oshpark.com/assets/badge-5b7ec47045b78aef6eb9d83b3bac6b1920de805e9a0c227658eac6e19a045b9c.png)
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