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1. 发明申请

US20070075884A1 Calibration of a redundant number system successive approximation analog-to-digital converter 有权
标题翻译：冗余数字系统逐次逼近模数转换器的校准
公开(公告)号：US20070075884A1
公开(公告)日：2007-04-05
申请号：US11537872
申请日：2006-10-02
申请人： John Melanson , Clinton Wolff
发明人： John Melanson , Clinton Wolff
IPC分类号： H03M1/10
CPC分类号： H03M1/1038 , H03M1/069 , H03M1/1033 , H03M1/468 , H03M1/804
摘要： A system and method calibrate a redundant number system analog-to-digital converter (RNS ADC) using successive approximations of multiple input signals and approximating each input signal at least twice. The RNS ADC includes N analog converter reference elements, each of the analog converter reference elements is associated with a weight in a weight vector W, and N is an integer greater than one. The system and method successively approximate each of M distinct analog input signals twice to generate M respective pairs of successive approximation converter reference element vectors, C1j and C2j,that correspond to digital approximations of the input signals, wherein j ε {0, 1, . . . , M-1}, wherein M is a positive integer. The system and method utilize differences between the successive approximation converter reference element vectors, C1j and C2j to determine a final weight vector WB. Thus, in at least one embodiment, the difference between C1j· WB and C2j· WB can be used to determine the final weight vector WB.
摘要翻译：系统和方法使用多个输入信号的逐次逼近来校准冗余数字系统模数转换器（RNS ADC），并将每个输入信号近似至少两次。 RNS ADC包括N个模拟转换器参考元件，每个模拟转换器参考元件与权重向量 W中的权重相关联，并且N是大于1的整数。该系统和方法连续地近似M个不同的模拟输入信号中的每一个，以产生M个相应的逐次逼近转换器参考元素对，即，OLEYLE =“SLELE”> C 1 < 和 C 对应于数字近似值输入信号，其中j∈{0,1，...，。。，M-1}，其中M是正整数。该系统和方法利用逐次逼近转换器参考元素向量之间的差异，其中 C <1> OSTYLE =“SINGLE”> C j 以确定最终权重向量 W B / SUB>。因此，在至少一个实施例中， > > 之间的差异。 W B B 和 C 。可以使用 W B B来确定最终权重向量“O OYYLE =”SINGLE“> W B B 。

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