一种加速DRAM灵敏放大器的设计方法

A design to speed up sense amplifier in DRAM

文章设计了一种DRAM中的灵敏放大器,通过增加一个过充电压开关,一个过充电压工作时间脉冲控制电路,一个发生器电路,使得灵敏放大器的放大速度有效提升,从而改善了DRAM的性能指标参数t RCD,提高了DRAM的性能。这种方法通过很小的代价,实现了灵敏放大器放大速度的改进。电路易于控制,版图面积增加很小,功耗无需增加,是一种提高灵敏放大器性能的有效方法。

A sense amplifier of DRAM is designed in this paper, by adding an over drive voltage switch, an over drive voltage working time pulse control circuit and a generator to effectively improve the zoom speed of sense amplifier, thus the performance index parameter tRCD of DRAM is improved and so does the DRAM. This method improves the zoom speed of a sense amplifier at a low cost. The circuit is easy to control, increase of the layout area is very small, without increasing the power consumption, which is an effective way to imorove the oerformance of the sense arnnlifier.