DAC63004: Power-up delay

Johan Coosemans

Part Number: DAC63004

Hi TI team,

In post

https://e2e.ti.com/support/data-converters-group/data-converters/f/data-converters-forum/1211336/dac63204-how-fast-is-the-feedback-on-the-dac63204

You mention "There is a 2us delay for the change on the GPIO pin to the command being executed."

Would this be the same for the DAC63004? When testing, we noticed a 60µs delay between writing '00 - Power-up VOUT-X' to the COMMON-CONFIG register and the moment the DAC output starts to move to its ouput value.

Is the response on the GPIO pin faster than the response on the SPI command?

thank you & best regards,

Johan

over 1 year ago

+1 Paul_Frost over 1 year ago

TI__Guru 53333 points

Hi Johan,

I am currently discussing this with my design team to confirm. I think the post you reference they are discussing the output changing values, not really the DAC entering a power down state. Your question is similar to this one: https://e2e.ti.com/support/data-converters-group/data-converters/f/data-converters-forum/1279904/dac53004-wake-up-time-after-vout-pdn

We are working getting an estimate now.

Thanks,

Paul

0 Katlynne Jones over 1 year ago in reply to Paul_Frost

TI__Mastermind 31698 points

Hi Johan,

This time is expected by design for the output to exit power down mode. Using the GPIO pin would not change the delay time for exiting power down mode.

Best,

Katlynne Jones

Data converters

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DAC63004: Power-up delay