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ADS1675 Development board

SHASHANK JAGADISH
Expert 1690 points
Other Parts Discussed in Thread: ADS1675, TM4C123GH6PM, ADS127L01EVM, THS4503

Dear TI Community

I am in need of your help

I wanted to buy Analog to Digital converters - I looked around and found many such as ADS1675 etc

how ever I was unable to find any development boards to get started quickly

I am looking for an ADS1675 or equivalent and i want a ready to use board to which i give power and I can get Rx and Tx headers out from the board to 
connect it to my TM4C123Gh6pm board 

Thanks

  • 0
    TI__Guru**** 168655 points

    Hi Shashank,

    The only board we have for the ADS1675 is our ADS1675 Reference Design which you can find here:

    I'm not sure if it is what you are looking for, but it might serve your purposes.

  • 0 in reply to Tom Hendrick
    Prodigy 70 points
    Dear TI team and community!

    I would like to ask you about the next problem.
    In my project I am planning to use ADS1675.
    I want to gather info and send it to PC via UART.
    With the aim to start fastly I want to use deboard.

    Dear friends! Can you advice me an appropriate item?
    From start of the post I have discoverd similar devboard, but I want handling adc and send data myself.

    Thanks!
  • 0 in reply to Andrei Kuchinskii
    TI__Guru 57336 points
    Hello Andrei,

    Thanks for your interest in the ADS1675!

    The evaluation board that Tom provided the link for above is the only reference design that we have to offer. You are welcome to develop your own custom software for your application, but our team will not be able to support you in this effort. If you have specific questions about the ADS1675 or the ADS1675REF board itself, I can help you with that in a new thread.

    Best Regards,
  • 0 in reply to Ryan Andrews
    Prodigy 70 points

    Dear TI team and community!

    I have read the ADS1675REF User's Guide and suppose that it devboard completely fit to all my needs)).
    I would like to clarify some moments about.

    Q1: Can I use ADS1675REF for signal exploring with FPGA processor board (XEM3010) and for own firmware development without XEM3010?

    Q2:
    Devboard requires -4V, 0V, 3V, 5V, 9V voltage levels.
    If I use external DCV, I will use voltage regulators.
    Let's say, I have 15 DCV source. Using linear voltage regulator (for example, L7809ABV) I will get 9VC, the same procedure for 5V, 3V.
    Can I get negative voltage levels, without using bipolar DCV source?
    Can you give some recommendation concerning to reliable power design for ADS1675REF (components or app.note)?

    As I see, Q2 is very important, because this stage influences highly on the overall devboard performance.

    I am very grateful for any advice.

    Sincerely yours, Andrei.

  • 0 in reply to Andrei Kuchinskii
    TI__Guru 57336 points

    Hello Andrei,

    1. I do think the ADS1675REF is a good starting point for your initial evaluation. You should be able to learn how the device is expected to perform with the input signal characteristics seen in your system. Connecting to an external processor may be a little challenging since I do not see a debug header that is easily accessible. You could potentially solder wires to the connector pins on J6 and connect them to your processor board for firmware development. Keep in mind that TI will not be able to provide much support in that effort.

    2. Generating the DC voltage supplies from linear regulators is generally good practice for improving the power-supply rejection of your system. Minimizing the voltage drop from input to output will reduce the wasted power since LDOs are inherently less efficient than say a switching regulator. It is not necessary to generate a negative supply for the THS4503, but it can help increase the voltage headroom at the output to allow for larger signals. I do not have a power supply design specifically for the ADS1675; however, you can look at the ADS127L01EVM for an example of how you might do it. There, we generated +/- 12V from a +5V supply, which you could then reduce further with a negative LDO.

    Best Regards,