输入偏移电压
感测放大器
感应(电子)
电流反馈运算放大器
直接耦合放大器
放大器
偏移量(计算机科学)
运算放大器
计算机科学
电气工程
电压
电子工程
工程类
CMOS芯片
程序设计语言
作者
Pei Huang,Kuan‐Chang Chang,Junlin Ge,Chunyu Peng,Xiulong Wu,Junning Chen,Zhiting Lin
出处
期刊:IEEE Transactions on Circuits and Systems Ii-express Briefs
[Institute of Electrical and Electronics Engineers]
日期:2022-04-01
卷期号:69 (4): 2011-2015
被引量:3
标识
DOI:10.1109/tcsii.2022.3143504
摘要
The transistor offset from sense amplifiers affects the sensing performance in dynamic random-access memory (DRAM). Although various offset-compensation methods are available, the voltage mismatch remains large, and some methods are susceptible to timing variation. To improve the compensation effect and stability, we propose a current-mirror and switching-point compensation sense amplifier. The amplifier compensates one bit-line voltage to the switching point of an inverter and adjusts the other bit-line by a current mirror during compensation. The configuration is robust against timing variation. Moreover, the voltage of complementary bit line considerably changes due to the high gain of the switching point. Simulation results show that the voltage mismatch can be improved by 90% compared with that of a boosted reference voltage sense amplifier. In addition, the increased bit-line differential voltage can improve the sensing speed. At a low supply voltage of 0.75 V, the sensing yield improves by 11% compared with that of a boosted reference voltage sense amplifier and by 16% compared with that of an offset-cancellation sense amplifier.
科研通智能强力驱动
Strongly Powered by AbleSci AI