Hi,
Phase One actually introduced a new 16 bit format for the IQ3100MP. The older format was actually 14-bit, blown up to 16 bits in raw conversion.
It is interesting that Sony says 2FPS at 14 bits for the 100 MP sensor. My understanding is that Sony uses ramp type ADCs that measure the clocks to charge (or discharge) a reference capacitor until voltage match occurs. They can make that ramp less steep, increasing conversion time but gaining more precision.
It seems that the IQ3100MP pixels have a DR around 15 bits. To make full use of that, 15 bit conversion would be needed, taking twice the time compared to 14-bits. That would yield around 1 FPS maximum. What is the FPS on the FX?
The DR depends on full well capacity and readout noise, mainly. The small pixels of the 100MP sensors probably means lower full well capacity, but it is quite possible that Sony has reduced readout noise so more than 14 bits are needed.
The 150MP sensor is capable of 4 FPS at 14 bits and the 100 MP sensor is capable of 6 FPS at 14 bits.
I am not sure that 6 FPS makes a lot of sense with DSLRs, but it can probably be useful on mirrorless.
Best regards
Erik
The current 100mp sensor has more than 14 bits of usable information, requiring a 16 bit a/d. Sounds like the new one is similar? (I didn't read the specs, just noting that sony already is producing a sensor that requires a 16bit a/d to maximum the information).