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％．%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 .
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