DocumentCode :
3381991
Title :
Design of a small area and low power CMOS D/A converter based on the Alpha-Power Law MOSFET model
Author :
Kim, Daeyoon ; Hwang, Sanghoon ; Kang, Heewon ; Yeo, Seungjin ; Lee, Dubok ; Moon, Junho ; Song, Minkyu
Author_Institution :
Dept. of Semicond. Sci., Dongguk Univ., Seoul
fYear :
2008
fDate :
Aug. 31 2008-Sept. 3 2008
Firstpage :
259
Lastpage :
262
Abstract :
While the CMOS analog circuits can be designed with the minimum-gate-length of the fabrication process in the Alpha-Power Law MOSFET model, the length of a MOSFET gate has been chosen to be a larger scale than the minimum-gate-length in the conventional Shockleypsilas square model. In this paper, we describe a 6-b 100MSPS CMOS current steering Digital-to-Analog Converter (DAC) with the Alpha-Power Law model. In order to improve the matching characteristics of the DAC current cell, moreover, we introduce a new and unique adaptive-control-switch (ACS) and a common current cell layout technique using a tournament algorithm. The prototype circuit has been fabricated with a Samsung 1.8 V, 0.18 mum, 1-poly, 5-metal CMOS technology. It occupies 0.52 mm2 of silicon area with 15.8 mW power consumption. The fabricated chip area and the measured power dissipation are reduced by 30% and 25% over conventional ones, respectively.
Keywords :
CMOS integrated circuits; digital-analogue conversion; low-power electronics; CMOS D/A converter; CMOS technology; adaptive control switch; alpha-power law MOSFET model; current steering; digital-to-analog converter; power 15.8 mW; power consumption; Analog circuits; CMOS analog integrated circuits; CMOS process; CMOS technology; Digital-analog conversion; Fabrication; MOSFET circuits; Power MOSFET; Prototypes; Semiconductor device modeling;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electronics, Circuits and Systems, 2008. ICECS 2008. 15th IEEE International Conference on
Conference_Location :
St. Julien´s
Print_ISBN :
978-1-4244-2181-7
Electronic_ISBN :
978-1-4244-2182-4
Type :
conf
DOI :
10.1109/ICECS.2008.4674840
Filename :
4674840
Link To Document :
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