一种采用动态复位电流源抑制噪声的复位电平控制的CMOS图像传感器

2004 IEEE International Solid-State Circuits Conference (IEEE Cat. No.04CH37519) Pub Date : 2004-09-13 DOI:10.1109/ISSCC.2004.1332620

Kwang-Hyun Lee, E. Yoon

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引用次数: 9

摘要

提出了一种采用0.18/spl mu/m 1P4M技术的512 /spl倍/ 384 CMOS图像传感器，像素间距5.9/spl mu/m，采用动态复位电流源补偿kTC复位噪声和固定模式噪声。总共390/spl mu/V(rms)读出噪声，并且比传统复位提高了两倍。该芯片工作电压为1.8V，功耗为40mW，不包括I/O和片外DAC，用于单斜率ADC，速度为24帧/秒。

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A CMOS image sensor with reset level control using dynamic reset current source for noise suppression

A 512 /spl times/ 384 CMOS image sensor in 0.18/spl mu/m 1P4M technology with 5.9/spl mu/m pixel pitch and a dynamic reset current source to compensate for kTC reset noise and fixed pattern noise is presented. A total of 390/spl mu/V(rms) readout noise, and a factor of two improvement over conventional reset is achieved. The chip operates at 1.8V and consumes 40mW excluding I/O and off-chip DAC for a single-slope ADC at 24frames/s.

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2004 IEEE International Solid-State Circuits Conference (IEEE Cat. No.04CH37519)

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