A $128\times 1$ Pixels, High Dynamic Range SPAD Imager in $0.18\ \mu\text{m}$ CMOS Technology

SPAD imager is proposed to achieve high dynamic range image. A SPAD chip with 128×1 pixels in 0.18 μm CMOS process is presented to show the feasibility. The chip design and the image method are detailed illustrated. The experiment results show that the SPAD imager can achieve 89 dB high dynamic range image, which is about 20 dB higher than that using CCD and CMOS image sensors, showing the superiority of the proposed method.