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ADS1278-SP: sample rate

Stefan Lintner
Expert 5075 points
Part Number: ADS1278-SP

Hi Team,

can you please confirm that 128ksps sample rate is per channel and not overall (128/8 ksps) while simultaneously sampling?

BR,
Stefan

  • +1
    TI__Mastermind 45040 points

    Hello Stefan,

    Yes, you are correct.  Each channel can support 128ksps independent of how many channels are active; there are 8 separate ADC cores inside the device.  Total maximum output data rate from the device with all 8 channels active will be 8*128ksps=1024ksps.  Please note that to operate at speeds greater than 105ksps, Frame-sync communications must be used (SPI only works up to 105ksps).

    Regards,
    Keith Nicholas
    Precision ADC Applications