发明授权
- 专利标题: DA converter, solid-state imaging device, and camera system
- 专利标题(中): DA转换器,固态成像装置和相机系统
-
申请号: US12762040申请日: 2010-04-16
-
公开(公告)号: US08274416B2公开(公告)日: 2012-09-25
- 发明人: Takashi Kawaguchi , Ryugi Yoshimura
- 申请人: Takashi Kawaguchi , Ryugi Yoshimura
- 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
- 代理机构: SNR Denton US LLP
- 优先权: JP2009-105929 20090424
- 主分类号: H03M1/66
- IPC分类号: H03M1/66
摘要:
A digital-to-analog (DA) converter includes: an analog output section that generates an output current corresponding to a value of a digital signal in response to a bias voltage and outputs an analog signal which is obtained from the output current by current-to-voltage conversion; a current source; a current control section that converts a current from the current source to a voltage signal and outputs the voltage signal as the bias voltage; and a sample and hold circuit section that samples and holds the bias voltage from the current control section and supplies the held bias voltage to the analog output section.
公开/授权文献
信息查询