Power Profiler Kit 2 shows non-linearity measurement result

[M.Ryosuke]

Dear person in charge.

Before using PPK2 for a evaluation of current consumption, I checkd power supply vs corrent measurement by using PPK2 and 5kΩ chip resistor.

I expected that power supply vs corrent measuremen shows linearity, however, PPK2 shows non-linearity.

Would you support how to solve this issue ? 

Can you see this issue ?

If this issue does not be improved, I can't use PPK2 for our evaluation.

[Issue]
・PPK2 result shows non-linearity.
・I think Range3(500μA-5mA) cause this problem because lower currents are same as Ideal (5kΩ / Vin) .

・I used Agilent N6705B (DC power analyzer) as reference data, this result is the same as Ideal.

   So, this non-linearity issue occurs at only PPK2.

[Measurement Setup]

・VOUT : 800mV ~ 4000mV

(HW setup)

(SW setup)

・Power Profiler v3.4.5

[Kazi Afroza Sultana]

Hello Ryosuke,

We also have reproduced the issue from our side. According to developer, the non-linearity you observed is expected. It is not outside of the accuracy specification of +/- 10%. Could you please tell us the production year of your device?  It is stated on the label on the kit.

Thanks.

Best Regards,

Kazi Afroza Sultana

[M.Ryosuke]

Hello Kazi,

OK, I understand that this isse is not outside of your specification.

The production year of my device is 2022.



Thank you.

Best regards,

Ryosuke Yamamoto

[Kazi Afroza Sultana]

Hello Ryosuke,

Thanks for the information. We are working on this issue. You will be updated soon.

Best regards,

Kazi Afroza Sultana