TMS320F28335-Q1: Questions of ADC power design

Ryan Lee TW

Intellectual 506 points

Part Number: TMS320F28335-Q1

Dear TI teams,

About TMS320F28335-Q1 power solution, and I don't need to use the internal ADC.

What should I deal with the ADC 1.8V & 3.3V pin, need to provide the voltage or open it?

Thanks.

over 3 years ago

0 Gus Martinez over 3 years ago

TI__Mastermind 25311 points

Hello,

A subject-matter expert reply your question. However, we have been dealing with inclement weather and power outages in the area and responses may be slow.

0 MatthewPate over 3 years ago in reply to Gus Martinez

TI__Guru 71815 points

Ryan,

Thanks for reaching out to the E2E.

Yes, even if the ADC is unused you will still need to provide power to the respective 3.3V and 1.8V pins. Section 8.2.7.1 in the datasheet will guide you on the recommendations we give for this scenario. There are additional requirements beyond the power pins.

I've C/P a snapshot below as well as the embedded link above.

Best,

Matthew

C2000™︎ microcontrollers

C2000 microcontrollers forum

TMS320F28335-Q1: Questions of ADC power design