VGA Color CMOS Imager General Description
This color imager is a mixed analog-digital circuit that combines in one single chip a VGA pixel matrix, a 10-bit analog to digital converter and an auto-exposure controller. Integrated in a standard low-voltage CMOS process, the circuit is suited for cost-effective imaging products such as miniature still picture cameras. Its nominal ultra low-power consumption of 8 mW at a frequency of 5 MHz is currently the lowest in the world. This versatile image sensor is particularly suited for battery-operated systems. The pixels of this image sensor are designed according to a patented concept, which allows true global shutter operation and thus upgrade the quality of captured moving scenes compared to pictures taken with others imagers. Nevertheless, the dimensions of the pixels are comparable with other commercial image sensors. Two additional exposition modes (enhanced dynamic range mode and linear-logarithmic modes) allow the capture of high-dynamic range scenes. The interface to this imager is performed via 24-bit SPI protocol. The data transfer is operated via a parallel bus.
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VGA Color CMOS Imager datasheet
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