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  • TI Thinks Resolved

TMP461: D- Pin is connected to GND?

Prodigy 20 points

Replies: 3

Views: 43

Part Number: TMP461

D- is connected to GND internally? why the measured resistance between D- and Pin 6 is not zero, about 1ohm.

so if I connect D+ to D-, it have the same performance with only D+ connected to GND and D- Pin is NC?

  • Hi, 

    If you connect the D+ and D- pin to each other you will not be able to measure a remote temperature value.  If you are only using the TMP461 as a local temperature sensor, you will not see a loss of local temperature accuracy if you connect D+ and D- together or only D+ connected to GND and D- floating.  

    Thanks,

    David

  • In reply to David Vaseliou:

    Hi David

    Yes, no request for remote function.

    please explain why the resistance between D- and GND is 1ohm ,while you confirmed D- is connected to GND internally.

    Thanks

    Peter

  • In reply to user1822511:

    Hi Peter,

    There is parasitic resistance between the two pins which is probably what you are seeing. 

    Thanks,

    David

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