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TMP464: TMP464 - Sense temperature from 4-Channel remote diode

Part Number: TMP464

Hi,

I have a qusetion about sense remote temperature by TMP464. 

The pin function defines negative connection to remote temperature sensors and common for 4 remote channels.

Can we read the tempearture from 4 remote channels in the same time ?  

Thanks.

Blake

  • Hi Blake,

    Yes, once a full conversion cycle time passes the temperature of each enabled channel will update.  You then can read each of the registers with the new data. 

    Thanks,

    David

  • Hi David,

    Thanks for your prompt reply. 

    But I'm confused about how to reach sense 4-Chaneel remote temperature in the same time if they share common D- pin ?

    I mean if the channel2, channel3 and channel4 should be disabled while channel1 is sensing. 

    Thanks.

    Blake

  • Blake,

    The device internally will switch a MUX between the enabled channels (see Functional Block Diagram in the datasheet).  For instance if you have all four channels enabled the device will MUX the different current through all four channels one at a time automatically.  After completing a full conversion cycle the temperature registers will be updated.

    Thanks,

    David