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    BOOTSTRAP SAMPLING CIRCUIT WITH ACCURATELY AVERAGING PRE-CHARGE CIRCUIT
    1.
    发明授权
    BOOTSTRAP SAMPLING CIRCUIT WITH ACCURATELY AVERAGING PRE-CHARGE CIRCUIT 有权
    采用准确平均预充电电路的自举电路采样电路

    公开(公告)号：EP2922065B1

    公开(公告)日：2017-12-27

    申请号：EP15000760.7

    申请日：2015-03-13

    Applicant: Linear Technology Corporation

    Inventor： Thomas, David M.

    IPC: G11C27/02 ,  H03K17/06 ,  H03K17/10 ,  H03K17/16

    CPC classification number: G11C27/028 ,  G11C27/024 ,  H03K17/063 ,  H03K17/162 ,  H03K17/165 ,  H03K2217/0054

    Abstract: A sampling circuit may include a sampling capacitance, an electronic sampling switch, and a switch controller. The electronic sampling switch may have a control input that controls whether the electronic sampling switch is in a sample state or a hold state. The electronic sampling switch may connect the sampling capacitance to an input signal while in the sample state and disconnect the sampling capacitance from the input signal while in the hold state. The switch controller may control the control input to the electronic sampling switch so as to cause the electronic sampling switch to be in the sample state during one period and the hold state during another period. While in the sample state, the switch controller may cause the impedance of the electronic sampling switch that is seen by the input signal to be substantially independent of the voltage of the input signal. The switch controller may include a pre-charge circuit that pre-charges the control input to the electronic sampling switch prior to each commencement of the sample state to approximately the average of the voltage of the input signal and the voltage on the sampling capacitance immediately prior to each commencement of the sample state. The amount of the pre-charging may be substantially independent of the voltage of the input signal.

    Systems and methods for randomizing component mismatch in an adc
    5.
    发明公开
    Systems and methods for randomizing component mismatch in an adc 有权
    欧洲模拟数字漫画家系统与Verfahren zur Ra​​ndomisierung von Komponentenfehlanpassung

    公开(公告)号：EP2590329A1

    公开(公告)日：2013-05-08

    申请号：EP12007591.6

    申请日：2012-11-07

    Applicant: Linear Technology Corporation

    Inventor： Thomas, David M.

    IPC: H03M1/06

    CPC classification number: H04B17/102 ,  H03M1/0673 ,  H03M1/74

    Abstract: Circuits and methods for converting a signal from analog to digital. A random number generator (302) provides a random number to a memory (308). The memory (308) is preconfigured to include codes of predetermined digital to analog, DAC, configurations that provide the maximum amount of DAC gradient suppression. At least one Flash reference generation DAC, FRGD (310), has an input coupled to the memory unit (308) and an output providing a reference voltage level for its respective Flash comparator (110). The Flash comparators (110) compare the analog input signal (VIN) to their respective reference voltage and provide a digital output signal based on the comparison.

    Abstract translation: 用于将信号从模拟转换成数字的电路和方法。 随机数生成器（302）向存储器（308）提供随机数。 存储器（308）被预配置为包括提供DAC梯度抑制的最大量的预定数字到模拟DAC的配置的代码。 至少一个闪存参考产生DAC FRGD（310）具有耦合到存储器单元（308）的输入和为其各自的闪存比较器（110）提供参考电压电平的输出。 闪存比较器（110）将模拟输入信号（VIN）与其各自的参考电压进行比较，并根据比较提供数字输出信号。

    Circuits and methods for cancelling signal dependent capacitance
    7.
    发明公开
    Circuits and methods for cancelling signal dependent capacitance 审中-公开
    Schaltungen und Methoden zur KompensationsignalabhängigerKapazitäten

    公开(公告)号：EP1760887A3

    公开(公告)日：2017-01-04

    申请号：EP06017241.8

    申请日：2006-08-18

    Applicant: Linear Technology Corporation

    Inventor： Sousa, Joseph L. ,  Thomas, David M.

    IPC: H03K19/003

    CPC classification number: H03F1/3211 ,  H01L27/0682 ,  H03F1/3276 ,  H03F1/56 ,  H03F2203/45576 ,  H03K19/00384

    Abstract: Systems and methods for reducing the magnitude of signal dependent capacitance are provided. Capacitance canceling circuitry is operative to generate cancellation capacitance in response to the magnitude of a signal, which may be the same signal that produces the undesired signal dependent capacitance, to at least partially cancel the signal dependent capacitance.

    Abstract translation: 提供了减小信号相关电容的幅度的系统和方法。 电容消除电路响应于产生不需要的信号相关电容的信号的幅度响应于至少部分地消除信号相关电容而产生消除电容。

    BOOTSTRAP SAMPLING CIRCUIT WITH ACCURATELY AVERAGING PRE-CHARGE CIRCUIT
    9.
    发明公开
    BOOTSTRAP SAMPLING CIRCUIT WITH ACCURATELY AVERAGING PRE-CHARGE CIRCUIT 有权
    BOOTSTRAP-ABTASTSCHALTUNG MIT GENAU GEMITTELTER VORLADUNGSSCHALTUNG

    公开(公告)号：EP2922065A1

    公开(公告)日：2015-09-23

    申请号：EP15000760.7

    申请日：2015-03-13

    Applicant: Linear Technology Corporation

    Inventor： Thomas, David M.

    IPC: G11C27/02 ,  H03K17/06 ,  H03K17/10 ,  H03K17/16

    CPC classification number: G11C27/028 ,  G11C27/024 ,  H03K17/063 ,  H03K17/162 ,  H03K17/165 ,  H03K2217/0054

    Abstract: A sampling circuit may include a sampling capacitance, an electronic sampling switch, and a switch controller. The electronic sampling switch may have a control input that controls whether the electronic sampling switch is in a sample state or a hold state. The electronic sampling switch may connect the sampling capacitance to an input signal while in the sample state and disconnect the sampling capacitance from the input signal while in the hold state. The switch controller may control the control input to the electronic sampling switch so as to cause the electronic sampling switch to be in the sample state during one period and the hold state during another period. While in the sample state, the switch controller may cause the impedance of the electronic sampling switch that is seen by the input signal to be substantially independent of the voltage of the input signal. The switch controller may include a pre-charge circuit that pre-charges the control input to the electronic sampling switch prior to each commencement of the sample state to approximately the average of the voltage of the input signal and the voltage on the sampling capacitance immediately prior to each commencement of the sample state. The amount of the pre-charging may be substantially independent of the voltage of the input signal.

    Abstract translation: 采样电路可以包括采样电容，电子采样开关和开关控制器。 电子采样开关可以具有控制输入，该控制输入控制电子采样开关是处于采样状态还是保持状态。 电子采样开关可以在采样状态下将采样电容连接到输入信号，并在保持状态下将采样电容与输入信号断开。 开关控制器可以控制对电子采样开关的控制输入，以使得电子采样开关在一个周期内处于采样状态，在另一个周期期间处于保持状态。 在采样状态下，开关控制器可能会使输入信号看到的电子采样开关的阻抗基本上与输入信号的电压无关。 开关控制器可以包括预充电电路，其在每次采样状态开始之前将电子采样开关的控制输入预先充电到大约的输入信号的电压的平均值和紧接在之前的采样电容上的电压 每次开始样品状态。 预充电的量可以基本上与输入信号的电压无关。

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