GPIO analog input read on higher than 2.1V voltage

[Maciek]

Hi,

I'm working on nrf9160 DK board version 0.8.5. I want to use analog pressure sensor and read data using GPIO input, however there is a little issue related to acceptable voltage range on VDD. In the documentation there is an errata stating that while using voltage higher than 2.1V, data readings might be faulty, and they indeed are. The sensor however does not operate on lower voltages (the one available on the board is 1.8V) - it does not send any data back. Is this going to be fixed in the future? If so - will that be a software or hardware update?

[Jared]

Hi,

I'm not sure which specific errata that you're referring to, are you thinking about the effect 3 V GPIO with heavy load has on the LTE RF performance? 

regards

Jared

[Maciek]

No, I meant this one here:

infocenter.nordicsemi.com/index.jsp

[Jared]

Hi,

 

Is this going to be fixed in the future? If so - will that be a software or hardware update?

 Yes, it will be an hardware update, as already highlighted on the errata. 

Jared