A Current-Mirror Winner-Take-All Sense Amplifier for Low Voltage SRAMs

Song JIA  Heqing XU  Fengfeng WU  Yuan WANG  

IEICE TRANSACTIONS on Electronics   Vol.E96-C   No.9   pp.1205-1207
Publication Date: 2013/09/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.E96.C.1205
Print ISSN: 0916-8516
Type of Manuscript: BRIEF PAPER
Category: Integrated Electronics
SRAM,  sense amplifier,  winner-take-all,  high speed,  

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We propose a current mode sense amplifier that uses a current-mirror to increase the bitline sensing current, which dominates the sensing speed. A comparison of the sensing delay shows that the proposed sense amplifier can provide about 12.6∼15.4% improvement depending on different bitline loads in sensing speed over original WTA scheme.