Compensation technique for parasitic capacitance
    1.
    发明授权
    Compensation technique for parasitic capacitance 失效
    寄生电容补偿技术

    公开(公告)号:US5744385A

    公开(公告)日:1998-04-28

    申请号:US822989

    申请日:1997-03-21

    申请人: Pirooz Hojabri

    发明人: Pirooz Hojabri

    IPC分类号: H01L27/08 H01L27/02

    CPC分类号: H01L27/0802

    摘要: Various circuit techniques to implement continuous-time filters with improved performance are disclosed. The present invention uses RMC type integrators that exhibit lower harmonic distortion. In one embodiment, a novel high-gain two-pole operational amplifier is used along with RMC architecture to achieve lower harmonic distortion. In another embodiment, the present invention uses dummy polysilicon resistors to accurately compensate for the distributed parasitics of the polysilicon resistors used in RMC integrator. In yet another embodiment, the present invention provides an on-chip tuner with a differential architecture for better noise immunity.

    摘要翻译: 公开了实现具有改进性能的连续时间滤波器的各种电路技术。 本发明使用表现出较低谐波失真的RMC型积分器。 在一个实施例中,新型高增益双极运算放大器与RMC架构一起使用以实现较低谐波失真。 在另一个实施例中,本发明使用虚拟多晶硅电阻器来精确地补偿RMC积分器中使用的多晶硅电阻的分布寄生效应。 在另一个实施例中,本发明提供具有差分架构的片上调谐器,以提供更好的抗噪声能力。

    Systems, circuits, and methods for pipelined folding and interpolating ADC architecture
    2.
    发明授权
    Systems, circuits, and methods for pipelined folding and interpolating ADC architecture 失效
    用于流水线折叠和内插ADC架构的系统,电路和方法

    公开(公告)号:US08063811B2

    公开(公告)日:2011-11-22

    申请号:US12949615

    申请日:2010-11-18

    IPC分类号: H03M1/34

    CPC分类号: H03M1/141

    摘要: A method and apparatus for performing pipelined capacitive folding and interpolation analog-to-digital conversion. In one embodiment, the apparatus comprises a multistage pipelined analog-to-digital converter having: a distributed sample/hold and preamp, folding and interpolation unit which combines a plurality of preamplified signals using a capacitive folding and capacitive interpolation; and a decoding unit coupled to decode the output signals from the folding and interpolation unit. The distributed sample/hold and preamp drastically improves the input dynamic range and hence increases ADC over all linearity. This technique offers an inherent dynamic offset cancellation in every sample and can be implemented in submicron CMOS, using the core digital supply.

    摘要翻译: 一种用于进行流水线电容折叠和插值模数转换的方法和装置。 在一个实施例中,该装置包括多级流水线模数转换器,其具有分布式采样/保持和前置放大器,折叠和内插单元,其使用电容性折叠和电容插值组合多个预放大信号; 以及解码单元,其被耦合以对来自折叠和插值单元的输出信号进行解码。 分布式采样/保持和前置放大器大大提高了输入动态范围,从而提高了ADC的全线性。 这种技术在每个采样中提供了固有的动态偏移消除,可以使用核心数字电源在亚微米CMOS中实现。

    Systems, Circuits, and Methods for Pipelined Folding and Interpolating ADC Architecture
    3.
    发明申请
    Systems, Circuits, and Methods for Pipelined Folding and Interpolating ADC Architecture 失效
    用于流水线折叠和插值ADC架构的系统,电路和方法

    公开(公告)号:US20110063151A1

    公开(公告)日:2011-03-17

    申请号:US12949615

    申请日:2010-11-18

    IPC分类号: H03M1/34 H03M1/00

    CPC分类号: H03M1/141

    摘要: A method and apparatus for performing pipelined capacitive folding and interpolation analog-to-digital conversion. In one embodiment, the apparatus comprises a multistage pipelined analog-to-digital converter having: a distributed sample/hold and preamp, folding and interpolation unit which combines a plurality of preamplified signals using a capacitive folding and capacitive interpolation; and a decoding unit coupled to decode the output signals from the folding and interpolation unit. The distributed sample/hold and preamp drastically improves the input dynamic range and hence increases ADC over all linearity. This technique offers an inherent dynamic offset cancellation in every sample and can be implemented in submicron CMOS, using the core digital supply.

    摘要翻译: 一种用于进行流水线电容折叠和插值模数转换的方法和装置。 在一个实施例中,该装置包括多级流水线模数转换器,其具有分布式采样/保持和前置放大器,折叠和内插单元,其使用电容性折叠和电容插值组合多个预放大信号; 以及解码单元,其被耦合以对来自折叠和插值单元的输出信号进行解码。 分布式采样/保持和前置放大器大大提高了输入动态范围,从而提高了ADC的全线性。 这种技术在每个采样中提供了固有的动态偏移消除,可以使用核心数字电源在亚微米CMOS中实现。

    EDC architecture
    4.
    发明授权
    EDC architecture 失效
    EDC架构

    公开(公告)号:US07893858B2

    公开(公告)日:2011-02-22

    申请号:US12398926

    申请日:2009-03-05

    IPC分类号: H03M1/34

    CPC分类号: H03M1/141

    摘要: A method and apparatus for performing pipelined capacitive folding and interpolation analog-to-digital conversion. In one embodiment, the apparatus comprises a multistage pipelined analog-to-digital converter having: a distributed sample/hold and preamp, folding and interpolation unit which combines a plurality of preamplified signals using a capacitive folding and capacitive interpolation; and a decoding unit coupled to decode the output signals from the folding and interpolation unit. The distributed sample/hold and preamp drastically improves the input dynamic range and hence increases ADC over all linearity. This technique offers an inherent dynamic offset cancellation in every sample and can be implemented in submicron CMOS, using the core digital supply.

    摘要翻译: 一种用于进行流水线电容折叠和插值模数转换的方法和装置。 在一个实施例中,该装置包括多级流水线模数转换器,其具有分布式采样/保持和前置放大器,折叠和内插单元,其使用电容性折叠和电容插值组合多个预放大信号; 以及解码单元,其被耦合以对来自折叠和插值单元的输出信号进行解码。 分布式采样/保持和前置放大器大大提高了输入动态范围,从而提高了ADC的全线性。 这种技术在每个采样中提供了固有的动态偏移消除,可以使用核心数字电源在亚微米CMOS中实现。

    EDC ARCHITECTURE
    5.
    发明申请
    EDC ARCHITECTURE 失效
    EDC架构

    公开(公告)号:US20100225519A1

    公开(公告)日:2010-09-09

    申请号:US12398926

    申请日:2009-03-05

    IPC分类号: H03M1/12

    CPC分类号: H03M1/141

    摘要: A method and apparatus for performing pipelined capacitive folding and interpolation analog-to-digital conversion. In one embodiment, the apparatus comprises a multistage pipelined analog-to-digital converter having: a distributed sample/hold and preamp, folding and interpolation unit which combines a plurality of preamplified signals using a capacitive folding and capacitive interpolation; and a decoding unit coupled to decode the output signals from the folding and interpolation unit. The distributed sample/hold and preamp drastically improves the input dynamic range and hence increases ADC over all linearity. This technique offers an inherent dynamic offset cancellation in every sample and can be implemented in submicron CMOS, using the core digital supply.

    摘要翻译: 一种用于进行流水线电容折叠和插值模数转换的方法和装置。 在一个实施例中,该装置包括多级流水线模数转换器,其具有分布式采样/保持和前置放大器,折叠和内插单元,其使用电容性折叠和电容插值组合多个预放大信号; 以及解码单元,其被耦合以对来自折叠和插值单元的输出信号进行解码。 分布式采样/保持和前置放大器大大提高了输入动态范围,从而提高了ADC的全线性。 这种技术在每个采样中提供了固有的动态偏移消除,可以使用核心数字电源在亚微米CMOS中实现。