发明授权
US5608352A Differential input circuit capable of broadening operation range of input common mode potential 失效
差分输入电路能够扩大输入共模电位的工作范围

  • 专利标题: Differential input circuit capable of broadening operation range of input common mode potential
  • 专利标题(中): 差分输入电路能够扩大输入共模电位的工作范围
  • 申请号: US362268
    申请日: 1994-12-22
  • 公开(公告)号: US5608352A
    公开(公告)日: 1997-03-04
  • 发明人: Tetsuro Itakura
  • 申请人: Tetsuro Itakura
  • 申请人地址: JPX Kawasaki
  • 专利权人: Kabushiki Kaisha Toshiba
  • 当前专利权人: Kabushiki Kaisha Toshiba
  • 当前专利权人地址: JPX Kawasaki
  • 优先权: JPX5-325233 19931222
  • 主分类号: H03F1/32
  • IPC分类号: H03F1/32 H03F3/45 H03F3/68
Differential input circuit capable of broadening operation range of
input common mode potential
摘要:
A differential input circuit includes a first differential pair having first and second transistors for receiving a differential input signal, and for transmitting a differential output signal. A second differential pair includes third and fourth transistors commonly connected to an output of the first differential pair. A differential amplifier circuit includes a third differential pair having fifth and sixth transistors for inputting the differential input signal commonly with the first differential pair for generating a differential amplify signal which is supplied to the second differential pair; so that the potential of an output operating point is set to operate the third and fourth transistors of the second differential pair.
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