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ProVol-- My 1ppm DAC accuracy Voltage Reference

This project is based on MAX5719A from Maxim. Hopefully, This will the most easily programable voltage reference.

sushisongrensushisongren
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  • Description
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  • Components 2
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ongoing project
MISC
dac voltage reference MAX5719 1PPM DAC 1PPM

This project was created on 09/11/2020 and last updated 6 years ago.

Description

ProVol is based on MAX5719A from MAXIM. Hopefully, This will the most easily programable voltage reference. Since the calibration of my voltage reference could be difficult to me and most of people. I may try my best to make this reference could be reliable for the 16&18 bits system.
The final version of ProVol will have the listed characteristics:
Shielded by a aluminium case
Banana jack
Internal temperature sense with TMP117(0.1℃ accuracy)
MCU inside
Controlled by an encoder
Large OLED/IPS LCD display
USB-C socket for the communication with PC.

Files

MAX5719_Core_V1.0.pdf

sheet

Adobe Portable Document Format - 362.38 kB - 05/31/2021 at 22:31

Preview

Components

  • 1 × MAX5719A
  • 1 × TMP117

Project Logs
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  • the output of my test board

    sushisongren • 09/11/2020 at 02:44 • 3 comments

    测试板

  • Test board finished

    sushisongren • 09/11/2020 at 02:39 • 0 comments

    I just finished the test board. The reference of the test boar is REF5040 from TI. I used the 4.096V in my code, but the real voltage is 4.0965V(24℃). I didn’t do any calibration or adjustment in my code. As you can see, the Initial accuracy of the MAX5719A is great.

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