SAD0820高速8位A／D转换器的设计与分析  

The Design and Analysis of an 8-Bit High-Speed Analogue-to-Digital Converter

作　　者：江泽福[1] 

机构地区：[1]四川重庆电子工业部24研究所

出　　处：《微电子学》1994年第6期18-21,共4页Microelectronics

摘　　要：ＳＡＤ０８２０高速８位Ａ／Ｄ转换器是一种具有跟踪／保持功能的８位高速微机兼容Ａ／Ｄ转换器，其转换时间为１．５ｕｓ，功耗为７５ｍＷ，用串并结构来实现Ａ／Ｄ转换器的高速。每４位ＡＤＣ分别由１５个比较器构成；单一电源工作，采用双层多晶硅ｐ阱ＣＭＯＳ工艺制作。An 8-bit high-speed A/D converter with track/hold function is described in the paper, Its con- version time is 1.5μs and the power consumption is 75mW. A two-step structure was used to achieve the high speed. Each 4-bit A/D converter is compeed of 15 comparators.The converter operates at single power sup- ply. Double poly-silicon p-well CMOS process was employed for the circuit.

关 键 词：CMOS 比较器 串并结构 模-数转换器 

分 类 号：TP335.1[自动化与计算机技术—计算机系统结构]