Adding a third ADC

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Joined: Thu May 19, 2016 2:15 pm

Adding a third ADC

Post by » Fri Jan 06, 2017 11:54 am


Is there a way to add a third 14-bit ADC with a sample rate of 1MSPS?

I was looking at doing this through an evaluation board such as a DC782A by connecting the parallel output of the eval board to the extension connector of the Red-Pitaya

Has anyone tried something like this before or know of another solution to add a third ADC?


Posts: 15
Joined: Fri Jul 31, 2015 9:22 pm

Re: Adding a third ADC

Post by igttgit » Fri Jan 06, 2017 3:31 pm

I have done exactly this.

I have added a 12bit 10MS/s ADC through the parallel port GPIO.

To do this, one must go through the examples in

afterwards add functionality to access the external GPIO directly
I have provided an FPGA block for this here

and last step is to put in a FIFO synchronization interface to your ADC,
for this you'll have to write your own FPGA block, my one only works for my particualar ADC and connection

actual last step is the software, I don't need to display my 3rd channel data, however if you want to add a third channel
to the web application, it might take some time.

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