Low-Power CMOS Image Sensor Based on Column-Parallel Single-Slope/SAR Quantization Scheme

  title={Low-Power CMOS Image Sensor Based on Column-Parallel Single-Slope/SAR Quantization Scheme},
  author={Fang Tang and Denis Guangyin Chen and Bo Wang and Amine Bermak},
  journal={IEEE Transactions on Electron Devices},
This paper presents a low-power megapixel image sensor design. In this paper, a column-parallel 11-bit two-step quantization scheme is proposed. It consists of a 3-bit single-slope analog-to-digital converter (ADC) and an 8-bit successive approximation register (SAR) ADC. The power consumption of the column-parallel circuitry is significantly reduced when compared with the traditional single-slope ADC and other low-power ADC schemes because smaller SAR ADC reference voltages are selected after… CONTINUE READING
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