Invention Grant
- Patent Title: DA converter, solid-state imaging device, and camera system
- Patent Title (中): DA转换器,固态成像装置和相机系统
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Application No.: US12762040Application Date: 2010-04-16
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Publication No.: US08274416B2Publication Date: 2012-09-25
- Inventor: Takashi Kawaguchi , Ryugi Yoshimura
- Applicant: Takashi Kawaguchi , Ryugi Yoshimura
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: SNR Denton US LLP
- Priority: JP2009-105929 20090424
- Main IPC: H03M1/66
- IPC: H03M1/66

Abstract:
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.
Public/Granted literature
- US20100271521A1 DA CONVERTER, SOLID-STATE IMAGING DEVICE, AND CAMERA SYSTEM Public/Granted day:2010-10-28
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