In the research of low-noise CMOS image sensors, in addition to paying attention to its noise, digitalization is also an important research and design direction. A 12-bit, 10 Msps pipeline ADC that can be used for low-noise CMOS image sensors is designed and taped out based on the 0.5 μm standard CMOS process. Finally, the analog-to-digital conversion of the low-noise CMOS image sensor with analog output is realized on the PCB test board using the ADC designed in this paper, and imaging verification is carried out based on the independently developed imaging test system. The results show that the imaging picture is clear and the ADC can be used as a chip-level analog-to-digital converter for low-noise CMOS image sensors.
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