CAJ | 학술논문

提出一种适用于低压快闪存储器的电流模式的低压灵敏放大器．该灵敏放大器在基准电流产生电路中使用电阻电流镜代替传统的晶体管电流镜，使得基准电流产生电路的工作电压减少了一个阈值电压，从而降低灵敏放大器的工作电压．位线电压控制电路中运算放大器的使用减少了由于温度和工艺变化所引起的位线电压变化，进而提高读取操作的精度．采用中芯国际90nm工艺设计，提出的灵敏放大器在1．2V电源电压时的读取时间是14．7ns ，相对于传统的结构，单个灵敏放大器的功耗被优化了13％．
제출일충괄용우저압쾌섬존저기적전류모식적저압령민방대기．해령민방대기재기준전유산생전로중사용전조전류경대체전통적정체관전류경，사득기준전유산생전로적공작전압감소료일개역치전압，종이강저령민방대기적공작전압．위선전압공제전로중운산방대기적사용감소료유우온도화공예변화소인기적위선전압변화，진이제고독취조작적정도．채용중심국제90nm공예설계，제출적령민방대기재1．2V전원전압시적독취시간시14．7ns ，상대우전통적결구，단개령민방대기적공모피우화료13％．
A new low-voltage and high speed sense amplifier based on very simple direct current-mode comparison is pre-sented .It adopts low-voltage reference cell current generator implemented through using resistor mirror instead of traditional transis-tor mirror to avoid threshold voltage drop of the transistor mirror thus reducing voltage supply of sense amplifier .The use of opera-tion amplifier in control circuit of bit-line voltage reduces voltage variation due to the variation of temperature and process corner , thus enhancing access precision .The proposed sense amplifier is designed in SMIC (Semiconductor Manufacturing International Corporation ) 90nm process and the sense time is 14 .7ns at power supply of 1 .2V .Meanwhile ,the current power of single sense amplifier is optimized by 13% over conventional structure .