Module: A high speed ADC for the RaspberryPi

The board in red:

Description

What is it supposed to do?

I've always needed a small upgrade to the existing raspberry ADC extensions, would love something in the 20-Msps range. Let's see if one can do it! Never tried smd, and thinking of using both smd and dip.. interesting learning curve ahead.

I've tried 3 different versions, increasing in complexity

• An older version using a CA3306 can be found as well: going around 10Msps, 6 bits. DIP based components.
• A possibly fast version of a 8 bit AD08200 ADC is available, going up to 12Msps.
• The latest 24Msps pHAT

Image of these HATs

Some results

24 Msps with the latest version

Details and FFT of a signal at 1.9MHz

11 Msps with the previous

FFT of a signal at 1.9MHz

Testing a 1MHz signal with the CA3306

Imaging a 1MHz sine:

License

Bomanz

The echOmods project and its prototypes (so Bomanz) are open hardware, and working with open-hardware components.

Licensed under TAPR Open Hardware License (www.tapr.org/OHL)

Copyright Kelu124 ([email protected] ) 2015-2018