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PRUDAQ is a fast ADC cape for BeagleBone Black and BeagleBone Green designed by Google Research.


  • Dual-channel simultaneously-sampled 10-bit ADC
  • Up to 20MSPS per channel (40MSPS total)
  • 0-2V input voltage range (DC coupled)
  • 4:1 analog switches in front of each channel provide a total of 8 single-ended analog inputs. (See here for differential input)
  • SMA jacks for direct access to the 2 ADC channels

Flexible clock options:

  • External input via SMA jack
  • Internal onboard 10MHz oscillator
  • Programmable clock from BeagleBone GPIO pins

It uses the BeagleBone PRUs to clock data into main memory for processing or storage.

The design is Free, or you can buy a pre-made board at GroupGets.

Project site: google/prudaq on github