排序方式: 共有30条查询结果,搜索用时 0 毫秒
1.
This paper presents a high-speed column-parallel cyclic analog-to-digital converter(ADC) for a CMOS image sensor.A correlated double sampling(CDS) circuit is integrated in the ADC,which avoids a stand-alone CDS circuit block.An offset cancellation technique is also introduced,which reduces the column fixed-pattern noise(FPN) effectively.One single channel ADC with an area less than 0.02 mm~2 was implemented in a 0.13μm CMOS image sensor process.The resolution of the proposed ADC is 10-bit,and the conversion rate is 1.6 MS/s. The measured differential nonlinearity and integral nonlinearity are 0.89 LSB and 6.2 LSB together with CDS, respectively.The power consumption from 3.3 V supply is only 0.66 mW.An array of 48 10-bit column-parallel cyclic ADCs was integrated into an array of CMOS image sensor pixels.The measured results indicated that the ADC circuit is suitable for high-speed CMOS image sensors. 相似文献
2.
3.
4.
5.
6.
7.
8.
丙酮用途比较广泛,应用到国民生产的各个行业领域中。本设计选用异丙苯法生产丙酮,具有反应条件相对温和、产率高、分离提纯方便等优点。根据年产20万吨丙酮的生产负荷设计提纯精馏塔,并对塔径、塔高、塔板数、塔顶塔底温度进行设计计算。 相似文献
9.
10.
本文介绍了N-羟基邻苯二甲酰亚胺的用途及目前国内外主要生产方法,通过对各种方法优缺点进行分析,改进已有的反应条件进一步优化了合成路线,取得较高的产率和纯度。 相似文献