Is BMCC white balance analog or digital

Camera white-balance has traditionally been done in the analog domain against the sensor RGB voltages. I am wondering:
Do Blackmagic Cinema cameras perform white-balancing in analog, pre ADC, or in digital, on the post ADC data?

Digital. It would appear that the BMCCs have very little pre-ADC adjustment (in most cameras you usually have a pre-amp, which you adjust with gain settings). The BMCC's ADCs, according to John brawley are 16 bit. The camera maps part of those 16 bit samples into the 12-bit DNG output depending on ISO settings. The white balance is then performed on the raw 12-bit data as part of the raw-to-BMD Film/REC.709 debayering process.

As a side note, it would appear that most other cameras perform white balance digitally rather than analog (Canon DSLRs are no exception).

Thanks.

The 16 bit linear output of the sensor pixels is mapped to a 12 bit log value. 12 bit log easily handles 16 bit linear. In Resolve it is put back into 16 bit linear and debayered, and you grade it the way you want there. Speaking here about RAW workflow, of course.