Sorry, I forgot one buy-out. Now On-Semi took over the former Cypress image sensors who took over former Fillfactory.
Anyway that’s not much help since they do not offer Fuga1000 anymore: http://www.onsemi.com/PowerSolutions/pa … ?id=101682 .
If you really need to stick with pixel-by-pixel processing, I’ld suggest to move to the conventional integrating types of sensors. Especially black/white, with a built in 10bit-or-more ADC and not too many automatic functions. The phase detection moves into the microcontroller code. The integrating pixel needs a reset after each readout which should be easy to combine in the sequencing of the ADC control signals. You now only need a cmos sensor that allows the RoI (region of interest) to be 1x1 (or maybe 2x2).
Suddenly you should have plenty of choice on digikey, rs components or maybe even here at sparkfun.