标题: 互补式金氧半导体影像感测器技术(II)-一个10位元连续逼近类比数位转换器及系统偏压电路
CMOS Image Sensor Technology(II)-A 10-bit Successive Approximation Analog-To-Digital Converter and System Biasing Circuit
作者: 陈银康
Tang Ning Kang
吴庆源
Ching-Yuan Wu
电子研究所
关键字: 影像感测器;CMOS Image Sensor
公开日期: 2001
摘要: 近来,互补式金氧半导体影像感测器已经受到广泛的注意,顾客对于微型化、低功率、低成本的需求成为其受到持续关注的主要原因。互补式金氧半导体影像感测器提供了整合超大型积体电路中各个系统在同一个晶片上的机会,并且减少了电路版上离散的电路元件数量,降低包装成本。一个包含时序控制器,感测器阵列,讯号处理器,类比到数位转换器,数位介面的单晶片照相机是可预期的。类比到数位转换器的解析度及转换速率对图像品质有很大的影响,尤其是在录影的应用。感测器的类比部份需要和PVT效应无关的偏压电路以获得稳定性及杂讯的压抑。
本论文中报告10位元连续逼近类比数位转换器及系统偏压电路。所设计的电路以SPICE及台积电1P/5M 0.25微米 3.3V 的spice 模型模拟。
Recently, there has been a growing interest in CMOS image sensors. The major reason for this interest is the customer demand for miniaturized, low-power, and low-coast digital cameras. CMOS image sensors offer a great potential to integrate a significant amount of VLSI electronics on a single chip and reduce discrete components and packaging costs. It is now straightforward to envision a single-chip camera that has integrated timing and control electronics, sensor array, signal processing electronics, analog-to-digital converter (ADC) and full digital interface. The resolution and conversion rate of the ADC has much influence on the image quality especially for video application. The analog portions in the sensors require a system biasing circuit that frees from PVT effect to obtain stability and noise suppression.
A 10-bit successive approximation ADC and the system biasing circuit are presented in this thesis. The designed circuits are simulated in SPICE and TSMC 1P/5M 0.25um 3.3V spice model.
URI: http://140.113.39.130/cdrfb3/record/nctu/#NT900428078
http://hdl.handle.net/11536/68770
显示于类别:Thesis