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ADS7830: sample rate per channel or total

Part Number: ADS7830

Hello,

On the ADS7830 datasheet it lists the sample rates below, were interested in 400kHz.

Is this sample rate per channel of the mux (ie 10ksps per input) or in total (ie 1.25ksps per input)?

If a customer wants to use 4 ADS7830s on a single bus, will they still be limited to 10ksps on the bus (ie 2.5ksps per ADC)?

Their goal is to read all 32 channels every 5-10ms.

Thanks,
Nick

  • Hello Nicholas

    The sample given in the datasheet is the total, as you noted, 1.25Ksps per channel.

    with 4 devices on the bus, this will limit each device to 2.5ksps per ADC as you have noted as well.

     

    The customer can still achieve to read all 32 channels within 10ms, one example is reading each channel every 100us, they would be within the 5ms marker desired

     

    Regards

    Cynthia