Title :
W-2W Current Steering DAC for Programming Phase Change Memory
Author :
Gupta, Shantanu ; Saxena, Vishal ; Campbell, Kristy A. ; Baker, R. Jacob
Author_Institution :
Dept. of Electr. & Comput. Eng., Boise State Univ., Boise, ID
Abstract :
This paper presents the design and experimental results of W-2W current mirror binary-weighted current steering digital-to-analog converter (DAC) and its application for programming phase change memory (PCM). This new approach significantly reduces the layout area of current-mode DACs by the virtue of its compact size. The proposed DAC can replace the write driver circuits in phase change memories. Both 6-bit and 12-bit DACs have been fabricated in 0.5 mum CMOS technology. The layout size of the 12-bit and the 6-bit DACs is 0.09 mm2 and 0.04 mm2 respectively. Experimental results are presented and the limitations are discussed.
Keywords :
CMOS integrated circuits; digital-analogue conversion; phase change memories; CMOS technology; binary-weighted current steering digital-to-analog converter; phase change memory; CMOS technology; Circuit topology; Digital-analog conversion; Driver circuits; Jacobian matrices; MOSFETs; Mirrors; Phase change materials; Phase change memory; Switches;
Conference_Titel :
Microelectronics and Electron Devices, 2009. WMED 2009. IEEE Workshop on
Conference_Location :
Boise, ID
Print_ISBN :
978-1-4244-3551-7
Electronic_ISBN :
978-1-4244-3552-4
DOI :
10.1109/WMED.2009.4816148
