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PGA280 - EVM / evaluation

Hello,
 
We are using a PGA280 on a design and I am gettting to the software development for my project.  I saw that there is an evaluation module for this and I am wondering if you might have an answer to the following questions.  I just want to explore the PGA280 a bit more before writing the software as it might quicken my understanding of the part.
 
I am trying to select evaluation modules for this effort also.  I want to get the ADS1259EVM primarily to test out and understand the PGA280. Is there software that comes with that or do I have to get the ADS1259EVM-PDK in order to evaluate it completely? For example, I will want to input a sinusoid and the output I could observe with a scope...that is all I really need at the moment.

In the future is it possible to combine an ADS1259EVM with a ADS1278EVM-PDK?  I would like to evaluate the PGA280 with the ADS1278, but not sure if that is possible.
 
Any feedback or input is welcomed and appreciated!
 
Thanks again!
Paul
  • Hi Paul,

    In order to evaluate the functionality of the PGA280 using software, you would require the ADS1259EVM-PDK. The PDK version includes the MMB0 board which serves as an interface to a computer running the EVM software. The ADS1259EVM-PDK software allows you to  configure the PGA280 (PGA configuration tab) and you may evaluate the functionality of the PGA280 by inputting a signal to the appropriate pins on J8 and then observing the PGA280s output at test points TP11 and TP12.

    Because the MMB0 board only allows for the evaluation of one EVM at a time, it would not be possible to combine the two EVMs in order to evaluate the PGA280 with the ADS1278. What you would need to do is configure the PGA280 on the ADS1259EVM via SPI using an alternate interface, and then you could route the signals from the PGA280 to the ADS1278EVM-PDK.

    John Caldwell

    Systems Engineering Manager

    Precision Amplifiers

  • In reply to John Caldwell:

    Thanks so much John!

    That makes sense to me.  Is it possible to install the ADS1278EVM onto the ADS1278EVM-PDK (less the ADS1278EVM).  In other words, if I were to purchase the ADS1278EVM-PDK and the ADS1278EVM, then I would have two boards that I can alternatively stuff onto the MMB0 board.   In effect buying one MMB0 board and two EVM boards that we only use one at a time onto the MMB0 board.  Just want to confirm that this will work.
     
    Thanks again!
    Paul
  • In reply to PaulSchoenke:

    Hi Paul,

    This would work just fine, the MMB0 should have no issue with you swapping in different ADS1278EVMs if you would like to test different configurations of the part.

    John Caldwell

    Systems Engineering Manager

    Precision Amplifiers