公开(公告)号：US07817071B2

公开(公告)日：2010-10-19

申请号：US12414653

申请日：2009-03-30

申请人： Kuan-Yu Lin ,  Tsung-Shuen Hung

发明人： Kuan-Yu Lin ,  Tsung-Shuen Hung

IPC分类号： H03M1/10

CPC分类号： H03M1/1004 ,  H03M1/1042 ,  H03M1/162 ,  H03M1/167

摘要： A low power consumption analog-to-digital converter (ADC) is provided. The switched capacitor circuit and the operational amplifier of the pipelined stage within the present low power consumption ADC are designed to close loop, and the operational amplifier is operated at the incomplete settling of the linear settling, namely, the operational amplifier is not operated at the slew state. Therefore, the pipelined stage would not produce signal dependent distortion, such that the gain error produced by the operational amplifier could be seen as a constant gain error.

摘要翻译： 提供了低功耗模数转换器（ADC）。 目前低功耗ADC中的开关电容电路和流水线级的运算放大器设计为闭环，运算放大器在线性稳定的不完全稳定运行，即运算放大器不在 压倒状态 因此，流水线阶段不会产生信号相关的失真，使得由运算放大器产生的增益误差可以被看作是恒定的增益误差。

公开(公告)号：US20100141492A1

公开(公告)日：2010-06-10

申请号：US12414653

申请日：2009-03-30

申请人： Kuan-Yu Lin ,  Tsung-Shuen Hung

发明人： Kuan-Yu Lin ,  Tsung-Shuen Hung

IPC分类号： H03M1/10

CPC分类号： H03M1/1004 ,  H03M1/1042 ,  H03M1/162 ,  H03M1/167

摘要： A low power consumption analog-to-digital converter (ADC) is provided. The switched capacitor circuit and the operational amplifier of the pipelined stage within the present low power consumption ADC are designed to close loop, and the operational amplifier is operated at the incomplete settling of the linear settling, namely, the operational amplifier is not operated at the slew state. Therefore, the pipelined stage would not produce signal dependent distortion, such that the gain error produced by the operational amplifier could be seen as a constant gain error.

摘要翻译： 提供了低功耗模数转换器（ADC）。 目前低功耗ADC中的开关电容电路和流水线级的运算放大器设计为闭环，运算放大器在线性稳定的不完全稳定运行，即运算放大器不在 压倒状态 因此，流水线阶段不会产生信号相关的失真，使得由运算放大器产生的增益误差可以被看作是恒定的增益误差。

公开(公告)号：US20080158037A1

公开(公告)日：2008-07-03

申请号：US11938795

申请日：2007-11-13

申请人： Szu-Kang Hsien ,  Tsung-Shuen Hung

发明人： Szu-Kang Hsien ,  Tsung-Shuen Hung

IPC分类号： H03M1/34

CPC分类号： H03M1/1061 ,  H03M1/361

摘要： An analog-to-digital converter with calibration is provided. The converter includes at least one conversion unit. The conversion unit includes a comparator, a control unit, a count unit, and a calibration unit. The comparator compares the voltage of the first input terminal with the voltage of the second input terminal and outputs a comparison result. The control unit outputs a control signal according to a comparison result of the comparator and a selecting signal. The count unit performs a count operation according to the control signal and outputs a count result. The calibration unit provides a reference voltage to the second input terminal of the comparator, and adjusts the level of the reference voltage according to the count result of the count unit. Thus, reference voltage is included inside each conversion unit and conventional resistor ladder producing reference voltage can be removed.

摘要翻译： 提供了具有校准功能的模数转换器。 转换器包括至少一个转换单元。 转换单元包括比较器，控制单元，计数单元和校准单元。 比较器比较第一输入端子的电压和第二输入端子的电压，并输出比较结果。 控制单元根据比较器的比较结果和选择信号输出控制信号。 计数单元根据控制信号执行计数操作并输出计数结果。 校准单元向比较器的第二输入端提供参考电压，并根据计数单元的计数结果调整参考电压的电平。 因此，参考电压被包含在每个转换单元内，并且可以去除常规的电阻梯产生参考电压。

公开(公告)号：US07589650B2

公开(公告)日：2009-09-15

申请号：US11938795

申请日：2007-11-13

申请人： Szu-Kang Hsien ,  Tsung-Shuen Hung

发明人： Szu-Kang Hsien ,  Tsung-Shuen Hung

IPC分类号： H03M1/06

CPC分类号： H03M1/1061 ,  H03M1/361

摘要： An analog-to-digital converter with calibration is provided. The converter includes at least one conversion unit. The conversion unit includes a comparator, a control unit, a count unit, and a calibration unit. The comparator compares the voltage of the first input terminal with the voltage of the second input terminal and outputs a comparison result. The control unit outputs a control signal according to a comparison result of the comparator and a selecting signal. The count unit performs a count operation according to the control signal and outputs a count result. The calibration unit provides a reference voltage to the second input terminal of the comparator, and adjusts the level of the reference voltage according to the count result of the count unit. Thus, reference voltage is included inside each conversion unit and conventional resistor ladder producing reference voltage can be removed.

摘要翻译： 提供了具有校准功能的模数转换器。 转换器包括至少一个转换单元。 转换单元包括比较器，控制单元，计数单元和校准单元。 比较器比较第一输入端子的电压和第二输入端子的电压，并输出比较结果。 控制单元根据比较器的比较结果和选择信号输出控制信号。 计数单元根据控制信号执行计数操作并输出计数结果。 校准单元向比较器的第二输入端提供参考电压，并根据计数单元的计数结果调整参考电压的电平。 因此，参考电压被包含在每个转换单元内，并且可以去除常规的电阻梯产生参考电压。