公开(公告)号：US20160316168A1

公开(公告)日：2016-10-27

申请号：US15200108

申请日：2016-07-01

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KAZUKO NISHIMURA ,  YUTAKA ABE

IPC: H04N5/3745 ,  H04N5/378 ,  H04N5/357

CPC classification number: H04N5/37455 ,  H03M1/12 ,  H04N5/3658 ,  H04N5/378

Abstract: A solid-state image pickup device includes: a pixel portion in which a plurality of pixels are arrayed in matrix; and an Analog-Digital converter. The Analog-Digital converter converts pixel signals, which are generated in the pixel portion, from analog signals into digital signals. The Analog-Digital converter includes: a comparator; and a counter. The comparator compares the analog signals, each of which corresponds to each of the plurality of pixels, with a reference signal. The comparator includes: a first differential transistor to which the reference signal is input; a second differential transistor to which the analog signals are input; a first load transistor; a second load transistor; and a current source transistor. A fluctuation of a voltage between a gate and a source of the first differential transistor is suppressed. This fluctuation follows a voltage fluctuation of a node connected commonly to the second differential transistor and the second load transistor.

Abstract translation: 固态图像拾取装置包括：以矩阵排列多个像素的像素部分; 和模拟数字转换器。 模拟数字转换器将像素部分中生成的像素信号从模拟信号转换为数字信号。 模拟数字转换器包括：比较器; 和柜台。 比较器将每个与多个像素中的每一个对应的模拟信号与参考信号进行比较。 比较器包括：输入参考信号的第一差分晶体管; 输入模拟信号的第二差分晶体管; 第一负载晶体管; 第二负载晶体管; 和电流源晶体管。 抑制第一差分晶体管的栅极和源极之间的电压的波动。 该波动遵循与第二差分晶体管和第二负载晶体管共同连接的节点的电压波动。

公开(公告)号：US20160309100A1

公开(公告)日：2016-10-20

申请号：US15196039

申请日：2016-06-29

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YUTAKA ABE ,  KAZUKO NISHIMURA

IPC: H04N5/357 ,  H04N5/378 ,  H01L27/146 ,  H04N5/374

CPC classification number: H04N5/357 ,  H01L27/14636 ,  H01L27/14641 ,  H01L27/14643 ,  H04N5/363 ,  H04N5/3658 ,  H04N5/374 ,  H04N5/378

Abstract: The solid-state imaging device includes unit cells each of which and generates a pixel signal corresponding to a light reception amount, vertical signal lines each of which is provided for a corresponding column of the unit cells and transfers the corresponding pixel signal, comparators each of which is provided for corresponding one of the vertical signal lines, and a ramp signal generation circuit that supplies a common ramp signal to the comparators. Each of the comparators includes a differential amplifier circuit that includes a transistor to which the ramp signal or the pixel signal is input, a transistor to which the other of the ramp signal and the pixel signal is input, an output terminal for outputting a signal corresponding to a difference between the ramp signal and the pixel signal, and a voltage generation circuit for reducing fluctuations of charge accumulated in a capacitance component of the transistor.

Abstract translation: 固态成像装置包括单位单元，每个单位单元产生对应于光接收量的像素信号，垂直信号线被提供给单位单元的相应列，并传送相应的像素信号，比较器 为对应的一个垂直信号线提供的斜坡信号产生电路，向公平斜坡信号提供公共斜坡信号。 每个比较器包括差分放大器电路，其包括输入斜坡信号或像素信号的晶体管，输入斜坡信号和像素信号中另一个的晶体管，用于输出相应信号的信号的输出端 到斜坡信号和像素信号之间的差异，以及用于减小在晶体管的电容分量中累积的电荷的波动的电压产生电路。