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222 条记录 (耗时 0.017 秒)

    Analog-to-digital converter with capacitor network
    53.
    发明公开
    Analog-to-digital converter with capacitor network 失效
    Analog / / Digitalumsetzer mitKapazitätsnetzwerk

    公开(公告)号：EP0880232A1

    公开(公告)日：1998-11-25

    申请号：EP98112875.4

    申请日：1993-03-23

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    发明人： Kusumoto, Keiichi ,  Matsuzawa, Akira

    IPC分类号： H03M1/00

    CPC分类号： H03M1/0678 ,  H03M1/365

    摘要： Link capacitors are used to establish connection between joining-points of coupling capacitors and inverters in an inverter chopper comparator array, in order to reduce injected electric charge variation due to feedthrough. Some of the comparators in the comparator array, arranged at each end thereof, constitute a redundant comparator array without connection to a logic circuit that is used to obtain an A/D conversion output. This reduces the effects of the device parameter variations in the comparator array, whereby a high accuracy voltage comparison is achieved, and noise-resistant strength is improved.

    摘要翻译： 链路电容器用于在反相器斩波比较器阵列中建立耦合电容器和反相器的接合点之间的连接，以便减少由于馈通引起的注入的电荷变化。 布置在比较器阵列的每一端的比较器阵列中的一些比较器构成冗余比较器阵列，而不连接到用于获得A / D转换输出的逻辑电路。 这降低了比较器阵列中的器件参数变化的影响，从而实现了高精度电压比较，并提高了抗噪声强度。

    REFERENCE LADDER AUTO-CALIBRATION CIRCUIT FOR AN ANALOG TO DIGITAL CONVERTER
    54.
    发明公开
    REFERENCE LADDER AUTO-CALIBRATION CIRCUIT FOR AN ANALOG TO DIGITAL CONVERTER 失效
    参考量表数字 - 模拟转换器自动校准电路

    公开(公告)号：EP0760181A4

    公开(公告)日：1998-07-15

    申请号：EP95921266

    申请日：1995-05-19

    申请人： SARNOFF DAVID RES CENTER

    发明人： SAUER DONALD J

    IPC分类号： H03M1/12 ,  H03M1/10 ,  H03M1/36

    CPC分类号： H03M1/1004 ,  H03M1/365

    摘要： An auto-calibrated reference resistor ladder network (140) is disclosed which is suitable for use in a precision ADC (110). Resistors in the ladder are connected to an auto-calibration circuit which continually measures the potential developed across each of the connected resistors and adjusts the resistance of the resistor to match the measured potential to a reference potential. The reference potential is the potential developed across a defined one of the resistors.

    High speed A/D converter and slew controlled pulse detector
    60.
    发明公开
    High speed A/D converter and slew controlled pulse detector 失效
    高速A / D转换器和旋转控制脉冲检测器

    公开(公告)号：EP0690583A2

    公开(公告)日：1996-01-03

    申请号：EP95109388.9

    申请日：1995-06-16

    申请人： HARRIS CORPORATION

    发明人： Johnson, Timothy J.

    IPC分类号： H03M1/36 ,  H03K5/24 ,  G01R29/02

    CPC分类号： G01S7/285 ,  G01S7/4021 ,  H03K5/24 ,  H03M1/365

    摘要： A pulse detecting system 1 has a high speed A/D converter 10 and a slew controlled pulse detector 110. The A/D converter 10 has large hysteresis for holding the converted digital value of an input signal V PULSE until the A/D converter 10 is reset. The slew controlled pulse detector 110 limits the slew rate of large amplitude pulse to correct arrival errors and provide an output signa V AT that more accurately represents the arrival time of the input pulse signal, V PULSE .

    摘要翻译： 脉冲检测系统1具有高速A / D转换器10和转换控制脉冲检测器110.A / D转换器10具有大的滞后，用于保持输入信号VPULSE的转换后的数字值，直到A / D转换器10为 重启。 旋转受控脉冲检测器110限制大振幅脉冲的转换速率以校正到达误差并提供输出信号VAT，其更准确地表示输入脉冲信号VPULSE的到达时间。