基于高速电流舵数/模转换器动态性能的电流开关驱动器  

Current switch drivers based on high-speed current-steeringdigital-to-analog convertor dynamic performance

作　　者：朱樟明[1] 杨银堂[1] 刘莉[1] 刘帘曦[1] 

机构地区：[1]西安电子科技大学微电子研究所,陕西西安710071

出　　处：《西安电子科技大学学报》2004年第5期701-704,共4页Journal of Xidian University

基　　金：国家高技术研究发展863计划资助项目(2002AA1Z1210)

摘　　要：基于电流开关驱动器对高速电流舵D/A转换器动态性能的影响因素分析,提出了结合驱动信号交叉点理论、同步锁存技术和低驱动信号摆幅的电流开关驱动器设计技术,并设计了新型的电流开关驱动器电路.基于TSMC0 35μmCMOS工艺采用Hspice仿真工具,对电流开关驱动器进行仿真分析和应用验证.基于电流开关驱动器所实现的4位D/A转换器具有很低的输出伪信号,所实现的8位D/A转换器具有很高的无杂波动态范围,表明这种电流开关驱动器能保证高速D/A转换器的良好动态性能.Based on the analysis of the influence of the current switch driver on dynamic performance of the high-speed current-steering D/A converter, the design principle of the current switch driver is proposed. The crossing point theory, synchronous flip-latch and limited swing driver are included in the principle, and a novel current switch driver circuit is proposed in TSMC 035?μm CMOS technology. The driver circuit is simulated and analyzed by Hspice. The 4-bit D/A converter introduced novel driver has low glitch energy, and the 8-bit segmented D/A converter introduced novel driver has high SFDR. The simulated results show that the principle and the driver are very useful to the high speed D/A converter design with good dynamic performance.

关 键 词：电流开关驱动器 D/A转换器 数/模转换器 驱动信号 SPICE仿真 杂波 TSMC 高速 动态性能 同步 

分 类 号：TN402[电子电信—微电子学与固体电子学] TN792