Recently I found a white paper on a very large CMOS sensor for use with broadcast cinema which was developed by Forza Silicon in California….

You can download or ready their paper on their site here : 133Mpixel 60fps CMOS Image Sensor with 32-Column Shared High-Speed Column-Parallel SAR ADCs

Here’s and extract of the intro:  “…In this paper, a 133Mpixel sensor that can be operated at 60fps to realize a full-resolution 8K single-chip camera is described. To achieve both high speed and suitable ADC resolution, 32-column multiplexing analog readout circuitry and 14b high-speed redundant successive approximation register (SAR) ADCs [5] are adopted. As a result, a full-size image with a data rate of 128.71Gb/s at 60fps has been captured.”