SAR ADC algorithm with redundancy
SAR ADC algorithm with redundancy
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DOI：
10.1109/apccas.2008.4746011
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发表时间：
2008-11
期刊：
影响因子：
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通讯作者：
Tomohiko Ogawa;Haruo Kobayashi;M. Hotta;Yosuke Takahashi;H. San;N. Takai
中科院分区：
文献类型：
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作者：
Tomohiko Ogawa;Haruo Kobayashi;M. Hotta;Yosuke Takahashi;H. San;N. Takai
本文介绍了一种高可靠性逐次逼近寄存器（SAR）ADC的冗余算法，其中比较器决策的错误可以数字校正。我们概括了一个传统的非二进制搜索算法，需要更多的转换步骤，在SAR ADC比二进制搜索算法，并澄清决策错误，可以数字校正与派生的冗余算法。我们还表明，使用所提出的算法的SAR ADC的采样速度可以更快时，SAR ADC内部的DAC的不完全建立的影响被考虑在内。
This paper describes a redundant algorithm for a highly reliable Successive Approximation Register (SAR) ADC where mistakes of comparator decision can be digitally-corrected. We generalize a conventional non-binary search algorithm which requires more conversion steps in the SAR ADC than the binary search algorithm, and clarify which decision errors can be digitally-corrected with the derived redundant algorithm. We also shows that the sampling speed of the SAR ADC using the proposed algorithm can be faster when the incomplete settling effects of the DAC inside the SAR ADC are taken into account.