The consistency of internal reference voltage of different NRF52832

[Bing]

Hi Nordic,

I want to know the consistancy of internel reference voltage (0.6v) of different NRF52832. Is there any tested data about this problem?

[ovrebekk]

Hi 

The accuracy of the internal bandgap reference is documented in the electrical specifications for the COMP peripheral in the nRF52832 Product Specification. 

The parameter is called E INT_REF, and is specified to +/- 3% 

Best regards
Torbjørn

[Bing]

Hi, I forgot to give the peripheral name. The peripheral is SAADC. So, according to your explanation, the internal reference used in SAADC is bandgap referecence and its accuracy is +3% to -3%. Right?

[ovrebekk]

Hi

Yes, it's the same reference used for the SAADC peripheral, when you use the internal reference. 

Best regards
Torbjørn