DAC80502: About Absolute Maximum Ratings

Taroimo

Part Number: DAC80502

Dear TI team

I am evaluating the circuit of the attached block with the DAC80502 on it.

At this time, the 3.3V starts faster than the 5V that drives the DAC80502, so the potential of SCLK/SDIN/XSYNC may momentarily exceed VDD+0.3V.

Still, according to the absolute maximum ratings, each pin of the DAC80502 can withstand up to ±10mA current at the device input during fault conditions, so I think it's okay.

Is the above understanding correct?

Best Regards,

Taroimo

over 2 years ago

0 Katlynne Jones over 2 years ago

TI__Mastermind 42273 points

Hi Taroimo-san,

Sanjay is reviewing your question and will respond shortly.

Best,

Katlynne Jones

0 Sanjay over 2 years ago in reply to Katlynne Jones

TI__Expert 5450 points

Hi Taroimo-san,

I will check this with team and will get back to you soon.

Thanks,

Sanjay

0 Taroimo over 2 years ago in reply to Sanjay

Intellectual 680 points

Hi Sanjay,

How is the progress?

Please let me know if you find anything.

Best Regards,

Taroimo

+1 Sanjay over 2 years ago in reply to Taroimo

TI__Expert 5450 points

Hi Taroimo-san,

I checked with my team and it should be ok if the digital pins comes up before the VDD pin, so long as the digital pins never exceed the abs max for the VDD pin.

Thanks,

Sanjay

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DAC80502: About Absolute Maximum Ratings