发明申请
US20100002120A1 COMPARATOR, METHOD OF CALIBRATING COMPARATOR, SOLID-STATE IMAGING DEVICE, AND CAMERA SYSTEM
有权
比较器，校准比较器的方法，固态成像装置和相机系统
- 专利标题： COMPARATOR, METHOD OF CALIBRATING COMPARATOR, SOLID-STATE IMAGING DEVICE, AND CAMERA SYSTEM
- 专利标题（中）： 比较器，校准比较器的方法，固态成像装置和相机系统
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申请号： US12494865申请日： 2009-06-30
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公开(公告)号： US20100002120A1公开(公告)日： 2010-01-07
- 发明人: Rei Yoshikawa , Atsushi Suzuki , Keiji Yamaguchi
- 申请人： Rei Yoshikawa , Atsushi Suzuki , Keiji Yamaguchi
- 申请人地址： JP Tokyo
- 专利权人： SONY CORPORATION
- 当前专利权人： SONY CORPORATION
- 当前专利权人地址： JP Tokyo
- 优先权： JP2008-175023 20080703
- 主分类号： H03K5/00
- IPC分类号： H03K5/00 ; H04N5/335
摘要：
A comparator includes: a signal input terminal; a capacitor connected between the signal input terminal and a signal line; and a switching transistor for calibration which is turned on/off to periodically charge the capacitor with a voltage difference between a signal voltage and an operating point of the comparator, wherein an on-resistance of the switching transistor which is turned on when performing the charging is dynamically controlled by a control pulse having a limited amplitude.
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