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ADS7828: Would like to get the design reviewed

SHYAM THILLAINATHAN
Prodigy 220 points
Part Number: ADS7828

Hi,

We have implemented the following in our design, would like to get the design reviewed.

2047.unnamed.rtf

  • 0
    TI__Expert 3072 points

    Hello Shyam,

    I have taken a look at your schematic and I have a few comments/questions below.

    1. What are the inputs you are expecting at J410, J411, J412, and CAPTOUCH? It is possible that input drivers may be required. If you provide the expected input frequency and amplitude then I will be able to simulation the settling at the inputs to the ADC. (More information on SAR ADC Input Driver Design: www.ti.com/tipladc)

    2. The SDA and SCL lines will need pullup resistors (suggested as 2kOhm resistors in the datasheet). Do you have the pullup resistors on the microcontroller side of this schematic?

    The rest of the schematic is correct.

     

    Thank you,

    Reed Kaczmarek