A 100-MHz CMOS DAC for video-graphic systems

Author

Cremonesi, Alessandro ; Maloberti, Franco ; Polito, Gino

Author_Institution

SGS-Thomson, Milano, Italy

Volume

24

Issue

3

fYear

1989

fDate

6/1/1989 12:00:00 AM

Firstpage

635

Lastpage

639

Abstract

A 6-b weighted-current-sink video digital-to-analog converter (DAC) with 10-90% rise/fall time of 4 ns, integrated with a double-metal 3-μm CMOS technology, is described. Current-source matching, glitch reduction, and differential switch driving aspects are considered. A circuit solution and a nonconventional layout technique yield a high conversion rate with a standard CMOS technology. Experimental results show that a conversion rate of 100 MHz is achievable. The power consumption is 150 mW and the active chip area is 0.5×1.0 mm². The differential of 0.1 LSB demonstrates that 8 b of accuracy can be achieved. The integral linearity is 0.5 LSB

Keywords

CMOS integrated circuits; computer graphic equipment; digital-analogue conversion; video equipment; 100 MHz; 150 mW; 3 micron; 4 ns; CMOS DAC; current source matching; differential switch driving; double metal technology; glitch reduction; high conversion rate; layout technique; power consumption; raster scan systems; video D/A convertor; video-graphic systems; weighted-current-sink; CMOS technology; Displays; Energy consumption; Graphics; Integrated circuit technology; Linearity; Matrix converters; Switches; Switching circuits; TV;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/4.32018

Filename

32018