基于灵敏放大器的高性能低功耗触发器设计  

A high-performance,low-power flip-flop design based on sense amplifier

作　　者：黄正峰[1] 苏子安 曹迪 戚昊琛[1] 倪天明 徐奇 HUANG Zhengfeng;SU Zian;CAO Di;QI Haochen;NI Tianming;XU Qi(School of Electronic Science and Applied Physics,Hefei University of Technology,Hefei 230601,China;School of Electrical Engineering,Anhui Polytechnic University,Wuhu 241000,China)

机构地区：[1]合肥工业大学电子科学与应用物理学院,安徽合肥230601 [2]安徽工程大学电气工程学院,安徽芜湖241000

出　　处：《合肥工业大学学报（自然科学版）》2020年第12期1633-1638,共6页Journal of Hefei University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(61874156,61974001,61904047);安徽省自然科学基金资助项目(1908085QF272);安徽工程大学科研启动基金资助项目(2018YQQ007)。

摘　　要：文章提出了一种基于灵敏放大器的触发器设计,称为Cinv SAFF。Cinv SAFF沿用Con SAFF的主级部分,引入C单元加2个反相器构成的锁存器作为从级,有效地精简了晶体管的数量,降低了面积成本和功耗开销,其输出端反相器将输出电容负载与内部结构相隔离,起到屏蔽内部噪声及毛刺的作用。通过详尽的HSPICE实验,将所提出的Cinv SAFF与其他7种相关结构进行全面对比,仿真结果表明:Cinv SAFF适用于高速运行,可工作于2 GHz的高频环境下;与已有的SAFF相比,在不带负载的情况下,所提Cinv SAFF的功耗、面积开销、功耗延迟积平均减小了25.07%、25.63%、19.3%;而在带20 fF电容负载的情况下,Cinv SAFF的延迟和功耗平均减小了11.8%和19.95%。Cinv SAFF具有较好的功耗、面积开销和功耗延迟积特性,在延迟方面也具有一定可比性。This paper proposes a sense amplifier based flip-flop design which is named Cinv SAFF.Cinv SAFF utilizes the master stage of Con SAFF and introduces the Cinv structure consisting of one C element and two inverters as the slave stage,which can effectively simplify the number of transistors,reduce the area overhead and the power consumption.Its output inverter isolates the output capacitive load from the internal structure to shield internal noise and glitches.Through detailed HSPICE experiments,the proposed Cinv SAFF is compared with other seven correlative structures.Simulation results demonstrate that Cinv SAFF is suitable for high-speed operation and can work in a high-frequency environment of 2 GHz.Compared with the existing SAFF,the proposed Cinv SAFF reduces the average power consumption,area overhead and power-delay-product(PDP)by 25.07%,25.63%and 19.3%without load,while the proposed Cinv SAFF has an average delay and power consumption reduction of 11.8%and 19.95%with 20 fF capacitive load.Cinv SAFF has a better performance in power consumption,area overhead and PDP,and is also comparable in terms of delay.

关 键 词：高性能 低功耗 触发器 灵敏放大器 C单元 

分 类 号：TN47[电子电信—微电子学与固体电子学]