DocumentCode
17589
Title
Efficient technique for excess loop delay compensation in continuous-time ΔΣ modulators
Author
Zhang, Ye ; Chen, C.H. ; Temes, Gabor C.
Author_Institution
Department of Electrical and Computer Science, Kelley Engineering Centre, Oregon State University, OR, USA
Volume
49
Issue
24
fYear
2013
fDate
November 21 2013
Firstpage
1522
Lastpage
1523
Abstract
A highly digital technique is proposed for excess loop delay (ELD) compensation in multi-bit continuous-time ΔΣ modulators. A digitally controlled reference switching matrix is used to replace the powerhungry signal adder and extra DAC driving the quantiser, which are commonly used in ELD compensation. With the proposed technique, the feedback DAC is embedded in the quantiser and implemented by a few switches. Thus, it allows low-voltage and low-power operation.
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el.2013.3470
Filename
6680410
Link To Document