The utility model relates to an image data analog digital conversion device and an image sensor comprising the device. The photosensitive element selecting controller of the image sensor for conducting a row by row selection signals, analog voltage signal the photosensitive unit is placed in the column signal processor simulation bus and sent to the corresponding, the analog signal processor for processing the output pixel sampling signal; pixel signal into the image data conversion device the image data conversion device respectively through high and low speed clock pulse counting and high-speed clock pulse, the final pixel image data obtained after processing the quantized image data; after the analog-to-digital conversion device for converting pixel image data by the multiplexer in the horizontal direction in a row to read image sensor. The utility model greatly reduces the power consumption of the digital module of the sensor and the noise of the substrate, thereby ensuring the image quality of the sensor.
【技术实现步骤摘要】
【技术保护点】
一种图像数据模数转换装置，包括斜坡信号发生器，时钟信号发生器，比较器，计数脉冲发生器；像素信号送入比较器的一个输入端；斜坡信号发生器产生的斜坡信号输入比较器的另一端；其特征在于还包括高位计数器，低位计数器和运算器；计数脉冲发生器根据比较器输出信号及时钟信号发生器产生的高速、低速两路时钟产生高速脉冲使能和低速脉冲使能两路时序信号，进而通过这两路时序信号与高速和低速两路时钟产生高位计数脉冲和低位计数脉冲；高速脉冲使能时序信号和高速时钟产生低位计数脉冲，低速脉冲使能时序信号和低速时钟产生高位计数脉冲，高位计数脉冲被送入高位计数器进行计数，低位计数脉冲被送入低位计数器进行计数；低位计数器和高位计数器的计数值经运算器运算处理后得到量化后的像素图像数据。
【技术特征摘要】
【专利技术属性】
技术研发人员：马成，王欣洋，
申请(专利权)人：长春长光辰芯光电技术有限公司，
类型：实用新型
国别省市：
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