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Visitor II
May 6, 2024
Question

7.5 MSPS with three interleaved ADCs

  • May 6, 2024
  • 2 replies
  • 1283 views

Hello Team,

I want to achieve 7.5msps using three 2.5msps external ADC with interleaving method. So how can I achieve this with STM32h745 controller. below attaches some documentation. please anyone can provide some example code or guidance to achieve desire task? 

sbaa231.pdf (ti.com)

slyt731.pdf (ti.com)

dplogiic_0-1714971404758.pngdplogiic_1-1714971679878.png

dplogiic_2-1714972193961.png

 

 

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    2 replies

    Super User
    May 6, 2024

    Hi,

    I want to achieve 7.5msps using three 2.5msps external ADC with interleaving method

    Why not use the 16bit ADCs on-chip ? Can do 14bit at 5msps  - each ! So up to 15msps possible .

     

    AScha3_1-1714974449306.png

     

    AScha3_0-1714974414993.png

     

    dplogiicAuthor
    Visitor II
    May 6, 2024

    yes AScha.3. but as per project requirements want to use external ADC ADS7046. and that working with SPI. so please can you guide for same?

     

    Graduate II
    May 6, 2024
    dplogiicAuthor
    Visitor II
    May 6, 2024

    Hello MM..1,

    Thanks for reply... i want triple interleaved with External ADC ADS7046. and that work with spi. please can you share example code for same?