My understanding is that its a 4MP array. And to put this in perspective a 12MP color sensor in a consumer camera also has 4MP resolution.
Only those with a Foveon sensor which are a tiny percentage of consumer cameras. The common Bayer sensor would be a true 12MP.
Ummm, you got that backwards. A 12MP Bayer array requires three sensor pixels for each image pixel, one pixel for red, one pixel for green, and one pixel for blue. A Foveon sensor requires one sensor pixel for each image pixel, because a Foveon sensor can detect all three colors at each pixel. So a camera with a Bayer 12M pixel sensor generates a 4MP image resolution.
And DAS is monochrome, so a 4MP sensor provides 4MP of resolution. But unlike a consumer camera, it sees way down into the infrared.