A 6 bit resolution, 1 gsamples/sec digital to analog converter

Author

Spiridon, S. ; Eynde, F. Op´t

Author_Institution

AsicAhead Int. SRL, Bucharest

Volume

2

fYear

2005

fDate

5-5 Oct. 2005

Firstpage

455

Abstract

This paper presents the analyses and design of a very high speed 6 bit digital to analog converter intended for high-speed data streaming applications. The DAC is implemented using current switching technique. For eliminating non-monotonicity thermometric coding is used for the first five MSBs. The circuit has differential current outputs. The output voltage is generated externally by the current that the DAC injects into high precision resistors. The circuit operates at only 1.5 V, making it an ideal choice for low-power mobile applications. The circuit exhibits a third order intermodulation (IM3) of about 37 dBc with a full-scale two tone sinusoidal inputs at 150 MHz and 200 MHz. The DAC is fabricated in a 0.13mum in CMOS technology, it occupies 0.3 mm ² and dissipates less then 7.5 mW

Keywords

digital-analogue conversion; intermodulation; 1.5 V; 150 MHz; 200 MHz; 6 bit digital-analog converter design; 6 bit resolution; CMOS technology; DAC; MSBs; current switching technique; differential current outputs; dissipation; full-scale two tone sinusoidal inputs; high-speed data streaming applications; low-power mobile applications; nonmonotonicity thermometric coding; output voltage; third order intermodulation; CMOS technology; Circuits; Digital-analog conversion; Power supplies; Resistors; Sampling methods; Switches; Temperature distribution; Transceivers; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Semiconductor Conference, 2005. CAS 2005 Proceedings. 2005 International

Conference_Location

Sinaia

Print_ISBN

0-7803-9214-0

Type

conf

DOI

10.1109/SMICND.2005.1558825

Filename

1558825