公开(公告)号：US08531323B2

公开(公告)日：2013-09-10

申请号：US13142367

申请日：2010-06-21

申请人： Ting Li ,  Yuxin Wang ,  Xiaofeng Shen ,  Shutao Zhou ,  Tao Liu ,  Mingyuan Xu ,  Ruzhang Li ,  Kaiquan He

发明人： Ting Li ,  Yuxin Wang ,  Xiaofeng Shen ,  Shutao Zhou ,  Tao Liu ,  Mingyuan Xu ,  Ruzhang Li ,  Kaiquan He

IPC分类号： H03M1/06

CPC分类号： H03M1/0695 ,  H03M1/168

摘要： A pipeline A/D converter and its single redundancy bit digital correction are provided. The single redundancy bit digital correction includes the following steps: substages except for the last one quantizes input voltage, calculates the residual voltage, which is amplified and shifted to the middle part of the reference voltage range, and outputs to the following substage until the last one, which only quantizes the input voltage; the code and offset code of each substage corresponding to the quantized thermometer code are calculated; the offset codes of all stages are added by weight to get total offset code; and codes of all substages are added by weight, to which the total offset code is added. The comparator offset error is corrected to obtain an output code which identifies the negative or positive overflow of input signals. The A/D converter adopting the above digital correction is provided.

摘要翻译： 提供流水线A / D转换器及其单个冗余位数字校正。 单个冗余位数字校正包括以下步骤：除最后一个以外的子步长量化输入电压，计算被放大并转移到参考电压范围中间部分的剩余电压，并输出到下一个子站直到最后一个 一个，仅量化输入电压; 计算与量化温度计代码相对应的每个子级的代码和偏移代码; 所有阶段的偏移代码通过权重相加得到总偏移代码; 并且通过加权添加所有子级的代码，添加总偏移代码。 校正比较器偏移误差以获得识别输入信号的负或正溢出的输出代码。 提供采用上述数字校正的A / D转换器。

公开(公告)号：US20110279295A1

公开(公告)日：2011-11-17

申请号：US13142367

申请日：2010-06-21

申请人： Ting Li ,  Yuxin Wang ,  Xiaofeng Shen ,  Shutao Zhou ,  Tao Liu ,  Mingyuan Xu ,  Ruzhang Li ,  Kaiquan He

发明人： Ting Li ,  Yuxin Wang ,  Xiaofeng Shen ,  Shutao Zhou ,  Tao Liu ,  Mingyuan Xu ,  Ruzhang Li ,  Kaiquan He

IPC分类号： H03M1/12 ,  H03M1/06

CPC分类号： H03M1/0695 ,  H03M1/168

摘要： The present invention pertains to the technical field of A/D converter, to be more specific, a pipeline A/D converter and its single redundancy bit digital correction. The related single redundancy bit digital correction features the following steps: substages except for the last one quantizes input voltage, calculates the residual voltage, which is amplified and shifted to the middle part of the reference voltage range, and outputs to the following substage until the last one, which only quantizes the input voltage; The code and offset code of each substage, corresponding to the quantized thermometer code is calculated; the offset codes of all stages are added by weight to get total offset code; codes of all substages are added by weight, to which the total offset code is added. The comparator offset error is corrected to obtain an output code; the present invention released the A/D converter that applies the foregoing digital correction; the present invention is capable of reducing the number of substages of high speed and high resolution pipeline A/D converter and identifying the negative or positive overflows of input signals.

摘要翻译： 本发明涉及A / D转换器的技术领域，更具体地说，涉及一种流水线A / D转换器及其单个冗余位数字校正。 相关的单冗余位数字校正功能如下：除了最后一个子模块外，量子化输入电压，计算剩余电压，放大并偏移到参考电压范围的中间部分，并输出到下一级，直到 最后一个，仅量化输入电压; 计算与量化温度计代码相对应的每个子级的代码和偏移码; 所有阶段的偏移代码通过权重相加得到总偏移代码; 所有子级别的代码按重量加上，补偿总偏移代码。 校正比较器偏移误差以获得输出代码; 本发明公开了应用上述数字校正的A / D转换器; 本发明能够减少高速和高分辨率流水线A / D转换器的子级数，并且识别输入信号的负或正溢出。