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TLA2518: CS kept low during acquisition

Mark Philip Felipe
Genius 11280 points

Part Number: TLA2518

Hi Team, we want to confirm if this is possible. 

Is it possible to keep the CS line low during acquisition with TLA2518? Using it in DMA-continuous mode and microcontroller doesn't provide a convenient way to rise CS after each conversion.
If not do you have an ADC with >12bits, >600ksps, 8 channels that allows it?

Thank you

-Mark

  • 0
    TI__Mastermind 25070 points

    hello,

    Unfortunately this device needs a state change of CS for the next channel to be sampled correctly.

    if the customer is looking to have multi channel with CS held low, I would suggest device: ADC128S102 

    This device uses the clock to progress through conversions, instead of CS, thus CS can remain low across multiple channel reads. Note that while CS is low, the bus is active, thus the bus cannot be used for any other device than this while CS is low. 

    Regards

    Cynthia