DocumentCode
1755479
Title
SAR-based delta-sigma modulator using single-bit shared-DAC
Author
Reyhani, Shahbaz Zahr ; Hashemipour, Omid
Author_Institution
Fac. of Electr. & Comput. Eng., Shahid Beheshti Univ., Tehran, Iran
Volume
50
Issue
3
fYear
2014
fDate
January 30 2014
Firstpage
156
Lastpage
158
Abstract
A new single-bit ΔΣ modulator based on multi-bit quantisation and a successive approximation (SA) algorithm with improved output swing due to a reduced quantisation noise power is presented. Although this structure maintains the linearity of the single-bit digital-to-analogue converter (DAC), it also removes the requirement for a high slew rate operational amplifier. Hence, the modulator dissipates less power.
Keywords
delta-sigma modulation; ΔΣ modulator; SAR-based delta-sigma modulator; digital-to-analogue converter; multibit quantisation; quantisation noise power reduction; single-bit shared-DAC; successive approximation register;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el.2013.3589
Filename
6731735
Link To Document