公开(公告)号：US20140285370A1

公开(公告)日：2014-09-25

申请号：US14300657

申请日：2014-06-10

Applicant: PANASONIC CORPORATION

Inventor： Takuji MIKI ,  Kazuo MATSUKAWA ,  Takashi MORIE ,  Shiro SAKIYAMA

IPC: H03M1/08 ,  H03M1/46

CPC classification number: H03M1/08 ,  H03M1/00 ,  H03M1/0641 ,  H03M1/12 ,  H03M1/466 ,  H03M1/468 ,  H03M1/804 ,  H03M3/30

Abstract: In a successive approximation AD converter, a noise generator outputs the output of a ΔΣ modulator as a noise signal. A selector circuit can output the noise signal, in place of a digital signal for generating a comparison-target voltage for the next bit, to a capacitor element of a capacitance DAC. During sampling of an analog input voltage, the noise signal is supplied to the capacitance DAC via the selector circuit, and thereafter normal successive approximation operation is executed.

Abstract translation: 在逐次逼近AD转换器中，噪声发生器输出＆Dgr＆amp; 调制器作为噪声信号。 选择器电路可以代替用于产生下一位的比较目标电压的数字信号，将噪声信号输出到电容DAC的电容器元件。 在采样模拟输入电压时，噪声信号通过选择电路提供给电容DAC，之后执行正常的逐次逼近操作。

公开(公告)号：US20140062750A1

公开(公告)日：2014-03-06

申请号：US14073834

申请日：2013-11-06

Applicant: PANASONIC CORPORATION

Inventor： Takashi MORIE ,  Shiro SAKIYAMA ,  Naoshi YANAGISAWA ,  Toshiaki OZEKI ,  Takuji MIKI

IPC: H03M1/12 ,  G05F3/16

CPC classification number: H03M1/12 ,  G05F3/16

Abstract: A reference voltage is maintained stable against disturbance noise and self-noise of an internal circuit. A reference voltage stabilizer circuit for stabilizing the reference voltage to be supplied through at least one of first or second signal lines includes a preceding-stage circuit including a capacitive path connected between the first and second signal lines; and a subsequent-stage circuit including a resistive path connected between the first and second signal lines, and a resistive circuit inserted, between the capacitive path and the resistive path, into one of the first or second signal lines through which the reference voltage is supplied.

Abstract translation: 参考电压对于内部电路的干扰噪声和自噪声保持稳定。 用于稳定通过第一或第二信号线中的至少一个提供的参考电压的参考稳压器电路包括前级电路，其包括连接在第一和第二信号线之间的电容路径; 以及包括连接在第一和第二信号线之间的电阻路径的后级电路，以及在电容路径和电阻路径之间插入到提供参考电压的第一或第二信号线之一的电阻电路 。