Experimental verification of a correlation-based correction algorithm for multi-bit delta-sigma ADCs

被引:2
|
作者
Wang, XS [1 ]
Guo, YH [1 ]
Moon, UK [1 ]
Temes, GC [1 ]
机构
[1] Oregon State Univ, Sch Elect Engn & Comp Sci, Corvallis, OR 97331 USA
关键词
D O I
10.1109/CICC.2004.1358874
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
A multi-chip system was built to provide experimental verification of a correlation-based digital algorithm, which acquires and corrects all element errors in the internal DAC of a multi-bit delta-sigma ADC. The proposed correction method does not rely on noise shaping, and hence it remains fully effective even for very low oversampling ratios (OSRs). Measured results obtained for OSR = 4 confirmed that a 12 dB SNDR improvement can be achieved using such digital correction, while only 1similar to2 dB with the commonly used mismatch-shaping technique.
引用
收藏
页码:523 / 526
页数:4
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