Analysis of R-2R digital-to-analog converter with equal current switching

Analysis and performance tradeoffs of an R-2R digital-to-analog converter with equal current switching are presented. It is shown that for such architecture, the active area of the DAC grows as the resolution increases due to higher matching requirement needed. A fully binary-weighted DAC suffers from well-known differential linearity problems and large switching glitches at the output, while a fully thermometer-coded DAC benefits from the relaxed DNL but requires a large area to realize. The R-2R DAC with equal current switching into the ladder network can be implemented using very low currents with more relaxed current matching requirements over the binary-weighted DAC, and less area over the thermometer-coded DAC.

Name thesis:degree_name

M.S.

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Electrical & Computer Engr

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2018

Author dc:creator

• Yeoh, Mei Ling

Contributors dc:contributor

• Radhakrishnan, Chandrasekhar
• Hanumolu, Pavan K.

• R-2R, DAC, INL, DNL

Statement dc:rights

• Copyright 2018 Mei Ling Yeoh

Language dc:language

en

Handle dc:identifier

http://hdl.handle.net/2142/101643

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/101643