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Universal Definition for "No Connect" or "NC"?

I am currrently working with the AD8624 and ADR445, but I would like to know if the answer to this question is the same for all Analog Devices products.  If a pin is labeled "NC" or "No Connect", does that mean it has no internal connection, and it could be tied to any node without consequences?

Thanks,

David

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  • Hi, David.

    Thank you for using ADI products. Regarding your question, the "NC" or "No connect" pins have no internal connections. These pins are provision for improvement for the part's derivative. This means that the "NC" pins of AD8624 in LFCSP maybe used as a reference pin, enable pin, common-mode pin or other additional pinout in the next generation of AD8624. If these "NC" pins have an assigned label such as REF pin, etc, then these pins have already an internal connection.

    As additional information, the two "NC" pins of AD8624 were only added to comply with the 16-lead LFCSP standard. Also, the two "NC" pins of ADR445 were added to comply with the 8-lead SOIC and MSOP standard.

    Hope this helps.

    Regards,

    Anna

Reply
  • Hi, David.

    Thank you for using ADI products. Regarding your question, the "NC" or "No connect" pins have no internal connections. These pins are provision for improvement for the part's derivative. This means that the "NC" pins of AD8624 in LFCSP maybe used as a reference pin, enable pin, common-mode pin or other additional pinout in the next generation of AD8624. If these "NC" pins have an assigned label such as REF pin, etc, then these pins have already an internal connection.

    As additional information, the two "NC" pins of AD8624 were only added to comply with the 16-lead LFCSP standard. Also, the two "NC" pins of ADR445 were added to comply with the 8-lead SOIC and MSOP standard.

    Hope this helps.

    Regards,

    Anna

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