Design of a full-swing CMOS current steering D/A converter with an adaptive high-impedance current cell

Dongjoo Kim, Woongtaek Lim, Jongyoon Hwang, Sangil Han, Minkyu Song

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper describes a 6-bit full-swing CMOS current-steering digital-to-analog converter (D/A converter, DAC). Conventionally, current-steering DAC does not have a full swing analog signal, because they have an inevitable voltage drop with the output current cell. To overcome the drawbacks, a new scheme of adaptive output current cell composed of both nMOS and pMOS is proposed. Using a pMOS current cell and a nMOS current cell, the final output voltage is driven by a multiplexer which selects the optimized current cell. Both of the current cells are added at the multiplexer adaptively. A 6-bit current steering DAC has been fabricated with 0.11 μm CMOS technology to verify the performance of the full-swing DAC. From the measured results, we obtain that the DAC has a full-swing output signal.

Original languageEnglish
Title of host publicationISOCC 2014 - International SoC Design Conference
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages64-65
Number of pages2
ISBN (Electronic)9781479951260
DOIs
StatePublished - 16 Apr 2015
Event11th International SoC Design Conference, ISOCC 2014 - Jeju, Korea, Republic of
Duration: 3 Nov 20146 Nov 2014

Publication series

NameISOCC 2014 - International SoC Design Conference

Conference

Conference11th International SoC Design Conference, ISOCC 2014
Country/TerritoryKorea, Republic of
CityJeju
Period3/11/146/11/14

Keywords

  • adaptive current cell
  • current steering D/A converter
  • full-swing

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