TY - JOUR
T1 - Nyquist-Rate Current-Steering Digital-to-Analog Converters With Random Multiple Data-Weighted Averaging Technique and QNRotated Walk Switching Scheme
AU - Lee, Da Huei
AU - Kuc, Tai Haur
N1 - Funding Information:
Manuscript received February 28, 2006; revised May 20, 2006. This work was supported by the National Science Council of Taiwan under Grant NSC94-2215-E-006-062. This paper was recommended by Associate Editor G. Manga-naro.
PY - 2006/11
Y1 - 2006/11
N2 - In this brief, Nyquist-rate current-steering digital-to-analog converters (DACs) applying the random multiple data-weighted averaging (RMDWA) technique and the QNrotated walk switching scheme are proposed such that high spurious-free dynamic range (SFDR) and small maximum output error can be achieved without calibrations, which are area and power consuming. RMDWA suppresses the harmonics caused by element mismatches to gain high SFDR performance. Furthermore, QNrotated walk can lower the maximum output error when RMDWA and QNrotated walk are employed simultaneously. Because the benefits of both dynamic element matching technique and switching scheme are obtained by the proposed DAC structure, the proposed structure can deliver smaller maximum output errors than traditional randomization techniques even if a low-cost small-area DAC with poor matching property is adopted.
AB - In this brief, Nyquist-rate current-steering digital-to-analog converters (DACs) applying the random multiple data-weighted averaging (RMDWA) technique and the QNrotated walk switching scheme are proposed such that high spurious-free dynamic range (SFDR) and small maximum output error can be achieved without calibrations, which are area and power consuming. RMDWA suppresses the harmonics caused by element mismatches to gain high SFDR performance. Furthermore, QNrotated walk can lower the maximum output error when RMDWA and QNrotated walk are employed simultaneously. Because the benefits of both dynamic element matching technique and switching scheme are obtained by the proposed DAC structure, the proposed structure can deliver smaller maximum output errors than traditional randomization techniques even if a low-cost small-area DAC with poor matching property is adopted.
UR - https://www.scopus.com/pages/publications/36248968959
UR - https://www.scopus.com/pages/publications/36248968959#tab=citedBy
U2 - 10.1109/TCSII.2006.882355
DO - 10.1109/TCSII.2006.882355
M3 - Article
AN - SCOPUS:36248968959
SN - 1549-7747
VL - 53
SP - 1264
EP - 1268
JO - IEEE Transactions on Circuits and Systems II: Express Briefs
JF - IEEE Transactions on Circuits and Systems II: Express Briefs
IS - 11
ER -