-
1.发明授权Apparatus and method for dynamic circuit element selection in an digital-to-analog converter 有权用于数模转换器中动态电路元件选择的装置和方法公开(公告)号：US07868806B2
公开(公告)日：2011-01-11
申请号：US12044399
申请日：2008-03-07
IPC分类号： H03M3/00
CPC分类号： H03M1/004 , H03M1/066 , H03M1/0665 , H03M1/0673 , H03M1/74 , H03M3/502
摘要： According to at least one embodiment of the invention, an apparatus may include first, second and third circuits. The first circuit receives input data and provides a plurality of first signals asserted based on the input data. The second circuit receives the plurality of first signals and provides a plurality of second signals used to select a plurality of circuit elements. The third circuit generates a control for the second circuit using a fractional data weight of the input data, the second circuit mapping the plurality of first signals to the plurality of second signals based on the control from the third circuit.
摘要翻译： 根据本发明的至少一个实施例，装置可以包括第一，第二和第三电路。 第一电路接收输入数据并提供基于输入数据而断言的多个第一信号。 第二电路接收多个第一信号并提供用于选择多个电路元件的多个第二信号。 第三电路使用输入数据的分数数据权重产生第二电路的控制，第二电路基于来自第三电路的控制将多个第一信号映射到多个第二信号。
-
公开(公告)号：US08094052B2
公开(公告)日：2012-01-10
申请号：US11759750
申请日：2007-06-07
IPC分类号： H03M1/66
CPC分类号： H03M1/0665 , H03M1/0673 , H03M1/74 , H03M3/502
摘要： Techniques for dynamically selecting circuit elements to combat mismatches are described. In one design, an apparatus includes first, second, and third circuits. The first circuit receives input data and provides first signals that are asserted based on the input data, e.g., with thermometer decoding. The second circuit receives the first signals and provides second signals used to select circuit elements, e.g., current sources, capacitors, resistors, etc. The third circuit generates a control for the second circuit, and the second circuit maps the first signals to the second signals based on this control. In one design, the second circuit includes a set of multiplexers and a control circuit. The multiplexers provides the first signals, circularly rotated by an amount determined by the control, as the second signals. The control circuit accumulates control data (e.g., the input data, pseudo-random data, or a fixed value) with the current control value to obtain new control value.
摘要翻译： 描述了用于动态选择电路元件以抵抗不匹配的技术。 在一种设计中，装置包括第一，第二和第三电路。 第一电路接收输入数据并提供基于输入数据而被确定的第一信号，例如用温度计解码。 第二电路接收第一信号并提供用于选择电路元件的第二信号，例如电流源，电容器，电阻器等。第三电路产生用于第二电路的控制，第二电路将第一信号映射到第二信号 基于此控制的信号。 在一种设计中，第二电路包括一组多路复用器和一个控制电路。 复用器提供循环旋转了由控制确定的量的第一信号作为第二信号。 控制电路用当前控制值累积控制数据（例如，输入数据，伪随机数据或固定值）以获得新的控制值。
-
公开(公告)号：US08004438B2
公开(公告)日：2011-08-23
申请号：US11759750
申请日：2007-06-07
IPC分类号： H03M1/66
摘要： Techniques for dynamically selecting circuit elements to combat mismatches are described. In one design, an apparatus includes first, second, and third circuits. The first circuit receives input data and provides first signals that are asserted based on the input data, e.g., with thermometer decoding. The second circuit receives the first signals and provides second signals used to select circuit elements, e.g., current sources, capacitors, resistors, etc. The third circuit generates a control for the second circuit, and the second circuit maps the first signals to the second signals based on this control. In one design, the second circuit includes a set of multiplexers and a control circuit. The multiplexers provides the first signals, circularly rotated by an amount determined by the control, as the second signals. The control circuit accumulates control data (e.g., the input data, pseudo-random data, or a fixed value) with the current control value to obtain new control value.
-
4.发明申请APPARATUS AND METHOD FOR DYNAMIC CIRCUIT ELEMENT SELECTION IN A DIGITAL-TO-ANALOG CONVERTER 有权数字到模拟转换器动态电路元件选择的装置和方法公开(公告)号：US20090224953A1
公开(公告)日：2009-09-10
申请号：US12044399
申请日：2008-03-07
CPC分类号： H03M1/004 , H03M1/066 , H03M1/0665 , H03M1/0673 , H03M1/74 , H03M3/502
摘要： According to at least one embodiment of the invention, an apparatus may include first, second and third circuits. The first circuit receives input data and provides a plurality of first signals asserted based on the input data. The second circuit receives the plurality of first signals and provides a plurality of second signals used to select a plurality of circuit elements. The third circuit generates a control for the second circuit using a fractional data weight of the input data, the second circuit mapping the plurality of first signals to the plurality of second signals based on the control from the third circuit.
摘要翻译： 根据本发明的至少一个实施例，装置可以包括第一，第二和第三电路。 第一电路接收输入数据并提供基于输入数据而断言的多个第一信号。 第二电路接收多个第一信号并提供用于选择多个电路元件的多个第二信号。 第三电路使用输入数据的分数数据权重产生第二电路的控制，第二电路基于来自第三电路的控制将多个第一信号映射到多个第二信号。
-
公开(公告)号：US20080272948A1
公开(公告)日：2008-11-06
申请号：US11759750
申请日：2007-06-07
IPC分类号： H03M1/66
CPC分类号： H03M1/0665 , H03M1/0673 , H03M1/74 , H03M3/502
摘要： Techniques for dynamically selecting circuit elements to combat mismatches are described. In one design, an apparatus includes first, second, and third circuits. The first circuit receives input data and provides first signals that are asserted based on the input data, e.g., with thermometer decoding. The second circuit receives the first signals and provides second signals used to select circuit elements, e.g., current sources, capacitors, resistors, etc. The third circuit generates a control for the second circuit, and the second circuit maps the first signals to the second signals based on this control. In one design, the second circuit includes a set of multiplexers and a control circuit. The multiplexers provides the first signals, circularly rotated by an amount determined by the control, as the second signals. The control circuit accumulates control data (e.g., the input data, pseudo-random data, or a fixed value) with the current control value to obtain new control value.
摘要翻译： 描述了用于动态选择电路元件以抵抗不匹配的技术。 在一种设计中，装置包括第一，第二和第三电路。 第一电路接收输入数据并提供基于输入数据而被确定的第一信号，例如用温度计解码。 第二电路接收第一信号并提供用于选择电路元件的第二信号，例如电流源，电容器，电阻器等。第三电路产生用于第二电路的控制，第二电路将第一信号映射到第二信号 基于此控制的信号。 在一种设计中，第二电路包括一组多路复用器和一个控制电路。 复用器提供循环旋转了由控制确定的量的第一信号作为第二信号。 控制电路用当前控制值累积控制数据（例如，输入数据，伪随机数据或固定值）以获得新的控制值。
-
公开(公告)号：US07642853B2
公开(公告)日：2010-01-05
申请号：US11844314
申请日：2007-08-23
申请人： Hayg-Taniel Dabag , Dongwon Seo , Manu Mishra
发明人： Hayg-Taniel Dabag , Dongwon Seo , Manu Mishra
IPC分类号： H03F3/26
CPC分类号： H03F3/45192 , H03F1/52 , H03F1/523 , H03F3/303 , H03F2203/30015 , H03F2203/30084 , H03F2203/30117 , H03F2203/45244 , H03F2203/45626 , H03F2203/45732
摘要： An output stage includes two transistors (switching transistor and biasing transistor) coupled in series in a pullup current path between a VDDA node and an output node, and also includes two transistors (switching transistor and biasing transistor) coupled in series in a pulldown current path between the output node and a ground node. Providing the biasing transistors reduces the maximum voltage dropped across the transistors, thereby allowing the transistors to have lower breakdown voltages than VDDA. An adaptive biasing circuit adjusts the gate voltage on a biasing transistor based on the output node voltage. If the output voltage is in a midrange, then the gate voltage is set farther away from a rail voltage in order to reduce voltage stress. If the output voltage is in a range closer to the rail voltage, then the gate voltage is set closer to the rail voltage, thereby facilitating rail-to-rail output voltage swings.
摘要翻译： 输出级包括在VDDA节点和输出节点之间的上拉电流路径中串联耦合的两个晶体管（开关晶体管和偏置晶体管），并且还包括串联耦合在下拉电流路径中的两个晶体管（开关晶体管和偏置晶体管） 在输出节点和接地节点之间。 提供偏置晶体管降低了跨越晶体管的最大电压，从而允许晶体管具有比VDDA更低的击穿电压。 自适应偏置电路基于输出节点电压来调节偏置晶体管上的栅极电压。 如果输出电压处于中频范围，则栅极电压被设置得更远离轨道电压，以便减小电压应力。 如果输出电压在更接近导轨电压的范围内，则栅极电压被设置为更接近导轨电压，从而便于轨至轨输出电压摆动。
-
公开(公告)号：US20090051431A1
公开(公告)日：2009-02-26
申请号：US11844314
申请日：2007-08-23
申请人： Hayg-Taniel Dabag , Dongwon Seo , Manu Mishra
发明人： Hayg-Taniel Dabag , Dongwon Seo , Manu Mishra
IPC分类号： H03F3/26
CPC分类号： H03F3/45192 , H03F1/52 , H03F1/523 , H03F3/303 , H03F2203/30015 , H03F2203/30084 , H03F2203/30117 , H03F2203/45244 , H03F2203/45626 , H03F2203/45732
摘要： An output stage includes two transistors (switching transistor and biasing transistor) coupled in series in a pullup current path between a VDDA node and an output node, and also includes two transistors (switching transistor and biasing transistor) coupled in series in a pulldown current path between the output node and a ground node. Providing the biasing transistors reduces the maximum voltage dropped across the transistors, thereby allowing the transistors to have lower breakdown voltages than VDDA. An adaptive biasing circuit adjusts the gate voltage on a biasing transistor based on the output node voltage. If the output voltage is in a midrange, then the gate voltage is set farther away from a rail voltage in order to reduce voltage stress. If the output voltage is in a range closer to the rail voltage, then the gate voltage is set closer to the rail voltage, thereby facilitating rail-to-rail output voltage swings.
摘要翻译： 输出级包括在VDDA节点和输出节点之间的上拉电流路径中串联耦合的两个晶体管（开关晶体管和偏置晶体管），并且还包括串联耦合在下拉电流路径中的两个晶体管（开关晶体管和偏置晶体管） 在输出节点和接地节点之间。 提供偏置晶体管降低了跨越晶体管的最大电压，从而允许晶体管具有比VDDA更低的击穿电压。 自适应偏置电路基于输出节点电压来调节偏置晶体管上的栅极电压。 如果输出电压处于中频范围，则栅极电压被设置得更远离轨道电压，以便减小电压应力。 如果输出电压在更接近导轨电压的范围内，则栅极电压被设置为更接近导轨电压，从而便于轨至轨输出电压摆动。
-
-
-
-
-
-
搜索结果
7 条记录 (耗时 0.02 秒)
