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1. 发明授权

US07965218B2 SAR ADC 有权
公开(公告)号：US07965218B2
公开(公告)日：2011-06-21
申请号：US12511250
申请日：2009-07-29
申请人： Frank Ohnhaeuser , Andreas Wickmann
发明人： Frank Ohnhaeuser , Andreas Wickmann
IPC分类号： H03M1/12
CPC分类号： H03M1/08 , H03M1/0682 , H03M1/124 , H03M1/468 , H03M1/804
摘要： An electronic device is provided for analog to digital conversion using successive approximation. The device comprises a first ADC stage. The first ADC stage includes a first plurality of capacitors adapted to sample an input voltage, and adapted to be coupled to either a first reference signal level or a second reference signal level. At least one capacitor of the first plurality of capacitors is adapted to be left floating. A control stage is adapted to switch the at least one floating capacitor to the first reference signal level or the second reference signal level in response to an analog to digital conversion decision made by a second ADC stage.
摘要翻译：提供了一种使用逐次逼近的模数转换电子装置。该器件包括第一ADC级。第一ADC级包括适于对输入电压进行采样的第一多个电容器，并且适于耦合到第一参考信号电平或第二参考信号电平。第一多个电容器中的至少一个电容器被适配为悬空。控制级适于响应于由第二ADC级进行的模数转换决定，将至少一个浮动电容器切换到第一参考信号电平或第二参考信号电平。

2. 发明授权

US07944387B2 ADC with low-power sampling 有权
标题翻译： ADC采用低功耗采样
公开(公告)号：US07944387B2
公开(公告)日：2011-05-17
申请号：US12687703
申请日：2010-01-14
申请人： Frank Ohnhaeuser , Andreas Wickmann
发明人： Frank Ohnhaeuser , Andreas Wickmann
IPC分类号： H03M1/12
CPC分类号： H03M1/002 , H03M1/0682 , H03M1/468 , H03M1/804
摘要： An apparatus for analog-to-digital conversion using successive approximation is provided, which is adapted to be supplied with a single ended supply voltage. The device includes: a first analog-to-digital conversion stage including a first set of capacitors coupled with a side at a common node and adapted to sample an input voltage and to be coupled to either a first reference voltage level or a second reference voltage level, at least one capacitor of the first set of capacitors being adapted to be left floating, a control stage being adapted to connect the at least one floating capacitor to the first reference voltage level or the second reference voltage level in response to an analog-to-digital conversion decision made by a second analog-to-digital conversion stage. The first analog-to-digital conversion stage is operable to couple the common node to a supply voltage level, in particular ground, during analog-to-digital conversion.
摘要翻译：提供了使用逐次逼近的用于模数转换的装置，其适于提供单端电源电压。该器件包括：第一模数转换级，其包括与公共节点的一侧耦合的第一组电容器，并且适于对输入电压进行采样并耦合到第一参考电压电平或第二参考电压所述第一组电容器中的至少一个电容适于悬浮，控制级适于将所述至少一个浮动电容器响应于模拟量电平连接到所述第一参考电压电平或所述第二参考电压电平，通过第二模数转换级进行数模转换决定。在模数转换期间，第一模数转换级用于将公共节点耦合到电源电压电平，特别是地。

3. 发明授权

US07773024B2 SAR analog-to-digital converter with large input range 有权
标题翻译： SAR模数转换器，输入范围大
公开(公告)号：US07773024B2
公开(公告)日：2010-08-10
申请号：US12173283
申请日：2008-07-15
申请人： Frank Ohnhauser , Andreas Wickmann
发明人： Frank Ohnhauser , Andreas Wickmann
IPC分类号： H03M1/12
CPC分类号： H03M1/129 , H03M1/0682 , H03M1/468
摘要： A method for analog-to-digital conversion is provided using successive approximation and a plurality of capacitors including a first set of capacitors and a second set of capacitors, a first side of each of the plurality of capacitors being coupled to a common node. The method includes sampling an input voltage on the first set of capacitors, after the step of sampling leaving a side of at least one capacitor of the first set of capacitors floating, coupling a capacitor of the first set of capacitors, which is not floating, with a capacitor of the second set of capacitors so as to redistribute the charge on the coupled capacitors, comparing the voltage on the common node with a comparator reference voltage level to receive a comparison result to be used for a bit decision, and switching the floating side of the floating capacitor of the first set of capacitors to either a first reference voltage or a second reference voltage in accordance with the bit decision.
摘要翻译：使用逐次逼近和包括第一组电容器和第二组电容器的多个电容器提供用于模数转换的方法，所述多个电容器中的每一个的第一侧耦合到公共节点。该方法包括在采样步骤之后对第一组电容器的输入电压进行采样，使第一组电容器的至少一个电容器的一侧浮动，耦合不浮置的第一组电容器的电容器，利用第二组电容器的电容器来重新分配耦合的电容器上的电荷，将公共节点上的电压与比较器参考电压电平进行比较，以接收用于比特决策的比较结果，以及切换浮动根据比特决定将第一组电容器的浮动电容器的侧面设置为第一参考电压或第二参考电压。

4. 发明申请

US20100026546A1 SAR ADC 有权
公开(公告)号：US20100026546A1
公开(公告)日：2010-02-04
申请号：US12511250
申请日：2009-07-29
申请人： Frank Ohnhaeuser , Andreas Wickmann
发明人： Frank Ohnhaeuser , Andreas Wickmann
IPC分类号： H03M1/12
CPC分类号： H03M1/08 , H03M1/0682 , H03M1/124 , H03M1/468 , H03M1/804
摘要： An electronic device is provided for analog to digital conversion using successive approximation. The device comprises a first ADC stage. The first ADC stage includes a first plurality of capacitors adapted to sample an input voltage, and adapted to be coupled to either a first reference signal level or a second reference signal level. At least one capacitor of the first plurality of capacitors is adapted to be left floating. A control stage is adapted to switch the at least one floating capacitor to the first reference signal level or the second reference signal level in response to an analog to digital conversion decision made by a second ADC stage.
摘要翻译：提供了一种使用逐次逼近的模数转换电子装置。该器件包括第一ADC级。第一ADC级包括适于对输入电压进行采样的第一多个电容器，并且适于耦合到第一参考信号电平或第二参考信号电平。第一多个电容器中的至少一个电容器被适配为悬空。响应于由第二ADC级进行的模数转换决定，控制级适于将至少一个浮动电容器切换到第一参考信号电平或第二参考信号电平。

5. 发明申请

US20100194619A1 ADC WITH LOW-POWER SAMPLING 有权
标题翻译： ADC低功耗采样
公开(公告)号：US20100194619A1
公开(公告)日：2010-08-05
申请号：US12687703
申请日：2010-01-14
申请人： Frank Ohnhaeuser , Andreas Wickmann
发明人： Frank Ohnhaeuser , Andreas Wickmann
IPC分类号： H03M1/36
CPC分类号： H03M1/002 , H03M1/0682 , H03M1/468 , H03M1/804
摘要： An apparatus for analog-to-digital conversion using successive approximation is provided, which is adapted to be supplied with a single ended supply voltage. The device includes: a first analog-to-digital conversion stage including a first set of capacitors coupled with a side at a common node and adapted to sample an input voltage and to be coupled to either a first reference voltage level or a second reference voltage level, at least one capacitor of the first set of capacitors being adapted to be left floating, a control stage being adapted to connect the at least one floating capacitor to the first reference voltage level or the second reference voltage level in response to an analog-to-digital conversion decision made by a second analog-to-digital conversion stage. The first analog-to-digital conversion stage is operable to couple the common node to a supply voltage level, in particular ground, during analog-to-digital conversion.
摘要翻译：提供了使用逐次逼近的用于模数转换的装置，其适于提供单端电源电压。该器件包括：第一模数转换级，其包括与公共节点的一侧耦合的第一组电容器，并且适于对输入电压进行采样并耦合到第一参考电压电平或第二参考电压所述第一组电容器中的至少一个电容器适于悬浮，控制级适于将所述至少一个浮动电容器响应于模拟量电平连接到所述第一参考电压电平或所述第二参考电压电平，通过第二模数转换级进行数模转换决定。在模数转换期间，第一模数转换级用于将公共节点耦合到电源电压电平，特别是地。

6. 发明申请

US20090027251A1 SAR ANALOG-TO-DIGITAL CONVERTER WITH LARGE INPUT RANGE 有权
标题翻译：具有大输入范围的SAR模拟数字转换器
公开(公告)号：US20090027251A1
公开(公告)日：2009-01-29
申请号：US12173283
申请日：2008-07-15
申请人： Frank Ohnhauser , Andreas Wickmann
发明人： Frank Ohnhauser , Andreas Wickmann
IPC分类号： H03M1/34
CPC分类号： H03M1/129 , H03M1/0682 , H03M1/468
摘要： A method for analog-to-digital conversion is provided using successive approximation and a plurality of capacitors comprising a first set of capacitors and a second set of capacitors, a first side of each of the plurality of capacitors being coupled to a common node. The method comprises sampling an input voltage on the first set of capacitors, after the step of sampling leaving a side of at least one capacitor of the first set of capacitors floating, coupling a capacitor of the first set of capacitors, which is not floating, with a capacitor of the second set of capacitors so as to redistribute the charge on the coupled capacitors, comparing the voltage on the common node with a comparator reference voltage level to receive a comparison result to be used for a bit decision, and switching the floating side of the floating capacitor of the first set of capacitors to either a first reference voltage or a second reference voltage in accordance with the bit decision.
摘要翻译：使用逐次近似来提供用于模数转换的方法，以及包括第一组电容器和第二组电容器的多个电容器，多个电容器的每一个的第一侧耦合到公共节点。该方法包括在采样步骤之后对第一组电容器上的输入电压进行采样，使第一组电容器的至少一个电容器的一侧浮动，将不是浮置的第一组电容器的电容器，利用第二组电容器的电容器来重新分配耦合的电容器上的电荷，将公共节点上的电压与比较器参考电压电平进行比较，以接收用于比特决策的比较结果，以及切换浮动根据比特决定将第一组电容器的浮动电容器的侧面设置为第一参考电压或第二参考电压。

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