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PCN# 20130514000 - DAC6311 Voltage revised from 1.8 to 2V

Chee-Boon Lim
Intellectual 325 points
Other Parts Discussed in Thread: DAC6311

PCN# 20130514000 - DAC6311 The AVDD has been revised from 1.8 to 2V. 

What prompted this change? What parameters are affected if the "new" part is driven at 1.8V?

  • 0
    TI__Mastermind 46290 points

    Hello Chee-Boon,

    The short and most direct response is that datasheet parameters, specifications, and descriptions may no longer hold true at lower supply voltages. As with any device it is not recommended that any of the test conditions are violated.

    The part has not been changed, it is the same silicon that we delivered previously. The datasheet was changed to more accurately reflect device performance.

  • 0 in reply to Kevin Duke
    Prodigy 20 points

    "As with any device it is not recommended that any of the test conditions are violated.", we designed to the datasheet when it was 1.8V. We have many units in the field operating at 1.8V.

    1) What reliability issues should we expect form units in the field?

    2) Please can you be more specific about what parameters and specifications do not hold at 1.8V.

    3) Should we urgently redesign to a 2.0V supply?

    Regards, Clive

     

  • 0 in reply to Clive Thomas
    TI__Mastermind 46290 points

    Clive,

    For an expedient answer to this, I think it's best if we take this offline and try to setup a conference call with you to discuss your use case and conditions of your application to determine if this is a risk for you. Is the email address you registered to the E2E community the best address to contact you at?

  • 0 in reply to Kevin Duke
    Prodigy 20 points

    Hi Kevin, that email address is the best.