ADS122U04: GPIO0 and GPIO1 termination in unused case

Takashi Onawa

Genius 13200 points

Part Number: ADS122U04

Hi Team,

I don't plan to use GPIO0 and GPIO1 in my application and I want to tie the GPIO0 and GPIO1 to DVDD or DGND directly.

Is it OK to do that? Or do we need to put 1~2kohm resister between GPIOX and (DVDD or DGND)?

Regards,

Takashi Onawa

over 6 years ago

0 Bob Benjamin over 6 years ago

TI__Guru** 113765 points

Hi Onawa-san,

There is a section on page 49 of the ADS122U04 datasheet in section 9.1.5 Unused Inputs and Outputs. If the GPIO are unused, then these pins can be tied directly to DVDD or DGND (when configured as inputs).

Best regards,

Bob B

0 Takashi Onawa over 6 years ago in reply to Bob Benjamin

TI__Genius 13200 points

Hi Bob-san,

Thanks, I understood\.

Regards,

Takashi Onawa

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ADS122U04: GPIO0 and GPIO1 termination in unused case