公开(公告)号：US08928508B2

公开(公告)日：2015-01-06

申请号：US13526147

申请日：2012-06-18

申请人： Fang-Shi Jordan Lai ,  Kuo-Ming Wang ,  Hsu-Feng Hsueh ,  Cheng Yen Weng ,  Yung-Fu Lin

发明人： Fang-Shi Jordan Lai ,  Kuo-Ming Wang ,  Hsu-Feng Hsueh ,  Cheng Yen Weng ,  Yung-Fu Lin

IPC分类号： H03M1/10 ,  H03M1/36

CPC分类号： H03M1/1009 ,  H03M1/1004 ,  H03M1/365

摘要： An analog-to-digital converter (ADC) including a plurality of comparators connected to the ADC. The ADC further includes a first pair of terminals and a second pair of terminals connected to each of the plurality of comparators. The ADC further includes a first pair of switches coupled to each of the first pair of terminals and a second pair of switches coupled to each of the second pair of terminals, where the first and second pair of switches are configured to alternate a corresponding comparator between normal operation and a calibration configuration. Comparators other than the corresponding comparator are configured for normal operation if the corresponding comparator is configured to be calibrated.

摘要翻译： 包括连接到ADC的多个比较器的模数转换器（ADC）。 ADC还包括连接到多个比较器中的每一个的第一对端子和第二对端子。 ADC还包括耦合到第一对端子中的每一个的第一对开关和耦合到第二对端子中的每一个的第二对开关，其中第一和第二对开关被配置为在 正常操作和校准配置。 如果对应的比较器被配置为校准，则比较器对应的比较器被配置为正常运行。

公开(公告)号：US20100164766A1

公开(公告)日：2010-07-01

申请号：US12347014

申请日：2008-12-31

申请人： Fang-Shi Jordan Lai ,  Kuo-Ming Wang ,  Hsu-Feng Hsueh ,  Cheng Yen Weng ,  Yung-Fu Lin

发明人： Fang-Shi Jordan Lai ,  Kuo-Ming Wang ,  Hsu-Feng Hsueh ,  Cheng Yen Weng ,  Yung-Fu Lin

IPC分类号： H03M1/10

CPC分类号： H03M1/1057

摘要： A method of calibrating a digital-to-analog converter (DAC) is provided. The DAC includes a least-significant bit (LSB) block, and dummy LSB block adjacent to the LSB block. The DAC has a most-significant bit (MSB) block, which includes MSB thermometer macros. The method includes measuring the dummy LSB block to obtain a dummy LSB sum; and calibrating the MSB block so that each of the MSB thermometer macros provides a substantially same current as the dummy LSB sum.

摘要翻译： 提供了一种校准数模转换器（DAC）的方法。 DAC包括最低有效位（LSB）块和与LSB块相邻的虚拟LSB块。 DAC具有最高有效位（MSB）块，其中包含MSB温度计宏。 该方法包括测量虚拟LSB块以获得虚拟LSB和; 并校准MSB块，使得每个MSB温度计宏提供与虚拟LSB总和大致相同的电流。

公开(公告)号：US08134486B2

公开(公告)日：2012-03-13

申请号：US12795225

申请日：2010-06-07

申请人： Fang-Shi Jordan Lai ,  Yung-Fu Lin ,  Kuo-Ming Wang ,  Hsu-Feng Hsueh ,  Cheng Yen Weng

发明人： Fang-Shi Jordan Lai ,  Yung-Fu Lin ,  Kuo-Ming Wang ,  Hsu-Feng Hsueh ,  Cheng Yen Weng

IPC分类号： H03M1/10

CPC分类号： H03M1/1004 ,  H03M1/1057 ,  H03M1/74

摘要： Mechanisms to calibrate a digital to analog converter (DAC) of an SDM (sigma delta modulator) are disclosed. An extra DAC element in addition to the DAC is used to function in place of a DAC element under calibration. A signal (e.g., a random sequence of −1 and +1) is injected to the DAC element under calibration, and the estimated error and compensation are acquired.

摘要翻译： 公开了校准SDM（Σ-Δ调制器）的数模转换器（DAC）的机制。 除了DAC之外还有一个额外的DAC元件用于代替校准下的DAC元件。 在校准下将信号（例如，-1和+1的随机序列）注入DAC元件，并且获得估计的误差和补偿。

公开(公告)号：US08803715B2

公开(公告)日：2014-08-12

申请号：US13365710

申请日：2012-02-03

申请人： Fang-Shi Jordan Lai ,  Yung-Fu Lin ,  Kuo-Ming Wang ,  Hsu-Feng Hsueh ,  Cheng Yen Weng

发明人： Fang-Shi Jordan Lai ,  Yung-Fu Lin ,  Kuo-Ming Wang ,  Hsu-Feng Hsueh ,  Cheng Yen Weng

IPC分类号： H03M1/10

CPC分类号： H03M1/1004 ,  H03M1/1057 ,  H03M1/74

摘要： Mechanisms to calibrate a digital to analog converter (DAC) of an SDM (sigma delta modulator) are disclosed. An extra DAC element in addition to the DAC is used to function in place of a DAC element under calibration. A signal (e.g., a random sequence of −1 and +1) is injected to the DAC element under calibration, and the estimated error and compensation are acquired.

摘要翻译： 公开了校准SDM（Σ-Δ调制器）的数模转换器（DAC）的机制。 除了DAC之外还有一个额外的DAC元件用于代替校准下的DAC元件。 在校准下将信号（例如，-1和+1的随机序列）注入DAC元件，并且获得估计的误差和补偿。

公开(公告)号：US08223047B2

公开(公告)日：2012-07-17

申请号：US12844150

申请日：2010-07-27

申请人： Fang-Shi Jordan Lai ,  Kuo-Ming Wang ,  Hsu-Feng Hsueh ,  Cheng Yen Weng ,  Yung-Fu Lin

发明人： Fang-Shi Jordan Lai ,  Kuo-Ming Wang ,  Hsu-Feng Hsueh ,  Cheng Yen Weng ,  Yung-Fu Lin

IPC分类号： H03M1/10

CPC分类号： H03M1/1009 ,  H03M1/1004 ,  H03M1/365

摘要： An analog to digital convertor (ADC) includes a plurality of comparators one of which is referred to as an auxiliary comparator (e.g., comparator “Aux”). This comparator Aux is calibrated in the background while other comparators function as usual. Once having been calibrated, the comparator Aux replaces a first comparator, which becomes a new comparator Aux, is calibrated, and replaces the second comparator. This second comparator becomes the new comparator Aux, is calibrated, and replaces the third comparator, etc., until all comparators are calibrated. In effect, at any one point in time, a comparator may be calibrated as desire while other comparators and thus the ADC are operating as usual.

摘要翻译： 模数转换器（ADC）包括多个比较器，其中之一被称为辅助比较器（例如，比较器“Aux”）。 该比较器Aux在后台校准，而其他比较器的功能如常。 一旦被校准，比较器Aux将替换成为新的比较器Aux的第一比较器，并且替换第二比较器。 第二个比较器成为新的比较器Aux，被校准，并替换第三个比较器等，直到所有的比较器被校准。 实际上，在任何一个时间点，可以根据需要对比较器进行校准，而其他比较器因此ADC正常运行。

公开(公告)号：US07893853B2

公开(公告)日：2011-02-22

申请号：US12347014

申请日：2008-12-31

申请人： Fang-Shi Jordan Lai ,  Kuo-Ming Wang ,  Hsu-Feng Hsueh ,  Cheng Yen Weng ,  Yung-Fu Lin

发明人： Fang-Shi Jordan Lai ,  Kuo-Ming Wang ,  Hsu-Feng Hsueh ,  Cheng Yen Weng ,  Yung-Fu Lin

IPC分类号： H03M1/10

CPC分类号： H03M1/1057

摘要： A method of calibrating a digital-to-analog converter (DAC) is provided. The DAC includes a least-significant bit (LSB) block, and dummy LSB block adjacent to the LSB block. The DAC has a most-significant bit (MSB) block, which includes MSB thermometer macros. The method includes measuring the dummy LSB block to obtain a dummy LSB sum; and calibrating the MSB block so that each of the MSB thermometer macros provides a substantially same current as the dummy LSB sum.

摘要翻译： 提供了一种校准数模转换器（DAC）的方法。 DAC包括最低有效位（LSB）块和与LSB块相邻的虚拟LSB块。 DAC具有最高有效位（MSB）块，其中包含MSB温度计宏。 该方法包括测量虚拟LSB块以获得虚拟LSB和; 并校准MSB块，使得每个MSB温度计宏提供与虚拟LSB总和大致相同的电流。