Invention Grant
US07916198B2 Common mode feedback circuit supporting dual data rate, programmable gain amplifier having the same, and image sensor having the programmable gain amplifier 有权
支持双数据速率的共模反馈电路,具有相同功能的可编程增益放大器和具有可编程增益放大器的图像传感器

  • Patent Title: Common mode feedback circuit supporting dual data rate, programmable gain amplifier having the same, and image sensor having the programmable gain amplifier
  • Patent Title (中): 支持双数据速率的共模反馈电路,具有相同功能的可编程增益放大器和具有可编程增益放大器的图像传感器
  • Application No.: US12182824
    Application Date: 2008-07-30
  • Publication No.: US07916198B2
    Publication Date: 2011-03-29
  • Inventor: Hyun Soo Yeom
  • Applicant: Hyun Soo Yeom
  • Applicant Address: KR Suwon-Si
  • Assignee: Samsung Electronics Co., Ltd.
  • Current Assignee: Samsung Electronics Co., Ltd.
  • Current Assignee Address: KR Suwon-Si
  • Agency: F. Chau & Associates, LLC
  • Priority: KR10-2007-0141099 20071229
  • Main IPC: H04N5/335
  • IPC: H04N5/335
Common mode feedback circuit supporting dual data rate, programmable gain amplifier having the same, and image sensor having the programmable gain amplifier
Abstract:
A common mode feedback circuit includes a first capacitor connected between a common mode feedback terminal and a first output terminal, a second capacitor connected between the common mode feedback terminal and a second output terminal, a first cell having a third capacitor sharing charges with the first capacitor and a fourth capacitor sharing charges with the second capacitor in response to a first clock control signal, and a second cell having a fifth capacitor sharing charges with the first capacitor and a sixth capacitor sharing charges with the second capacitor in response to a second clock control signal. The first clock control signal and the second clock control signal have respective logic states that do not overlap in time.
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