DAC7760: About BOOST, HART-IN & ISET-R pins

Hide

Guru 21045 points

Part Number: DAC7760

Hi Team,

I have some questions for BOOST, HART-IN & ISET-R pins.

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[Q1]

We don’t use BOOST pin.

Then, I guess that BOOST pin is OPEN.

Is my understanding correct?

If no, could you please let us know the proper way?

[Q2]

We don’t use the external HART signal.

Then, I guess that ISET-R & HART-in pin is OPEN.

If no, could you please let us know the proper way?

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Regards,

Kanemaru

over 5 years ago

0 Paul_Frost over 5 years ago

TI__Guru 53333 points

Hi Kanemaru-san,

Q1. If boost is not used, the pin can be left open.

Q2. If you are not using external HART or the external RSET resistor, then ISET-R can be left floating as well.

Thanks,

Paul

0 Hide over 5 years ago in reply to Paul_Frost

Guru 21045 points

Hi Paul-san,

Thank you for your prompt reply.

I have one more question for [Q2].

If you are not using external HART or the external RSET resistor, then is “HART-in pin” OPEN?

If no, could you please let us know the proper way?

Regards,

Kanemaru

0 Paul_Frost over 5 years ago in reply to Hide

TI__Guru 53333 points

The HART-IN pin can be left floating/open as well.

Thanks,

Paul

0 Hide over 5 years ago in reply to Paul_Frost

Guru 21045 points

Hi Paul-san,

Thank you for the information.

I understand. Thank you very much.

Regards,
Kanemaru

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DAC7760: About BOOST, HART-IN & ISET-R pins