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ADS8685: Could ADS8685 support 8pcs in daisy-chain mode?

Will Wang47
Expert 6750 points
Part Number: ADS8685

Hi team,

Customer want to use ADS8685 in their project. They want to use 8 pcs in daisy chain mode, could you help if ADS8685 could support 8 pcs in daisy-chain mode? Thanks.

Best Regards,

Will

  • 0
    TI__Mastermind 39845 points

    Hi Will,

    The data sheet does not specify the device quantity for the daisy-chain and it only shows an example with three devices in a daisy-chain in Figure 7-27. Based on support experience,  three or four devices in daisy-chain configuration should be fine. More devices in daisy-chain mode may lead to timing errors which will violate the setup parameter requirements and result in incorrect data capture by the host controller. Also, note that the overall throughput of the system is proportionally reduced with the number of devices connected in a daisy-chain configuration.

    Best regards,

    Dale