Why isn't the nRF52 ADC internal reference voltage included in the electrical characteristics?

[CurtisHx]

Why isn't the nRF52 ADC internal reference voltage included in the electrical characteristics on the SAADC in the Product Specification? Knowing what voltage the ADC is referencing is kind of critical to getting correct readings from the ADC. I see vague references to 0.6v floating around, but nothing official that says "The internal reference of the SAADC is 0.6v +/- 0.2% at a gain of 1" or something like that...

[Ole Bauck]

I agree that the internal reference voltage should be mentioned in the electrical specification. It is mentioned at various places in the Product Specification (search for 0.6 on the page), but this can be hard to find. I will see if we can change this.

The error for different gains are given in the table in electrical specification.