发明申请
US20050023443A1 Photocurrent-to-voltage conversion apparatus including non-diode-connected clamping MOS transistor
失效
包括非二极管连接的钳位MOS晶体管的光电流 - 电压转换装置
- 专利标题： Photocurrent-to-voltage conversion apparatus including non-diode-connected clamping MOS transistor
- 专利标题（中）： 包括非二极管连接的钳位MOS晶体管的光电流 - 电压转换装置
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申请号： US10900185申请日： 2004-07-28
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公开(公告)号： US20050023443A1公开(公告)日： 2005-02-03
- 发明人: Yuji Fujita
- 申请人： Yuji Fujita
- 申请人地址： JP KAWASAKI-SHI
- 专利权人： NEC COMPOUND SEMICONDUCTOR DEVICES, LTD.
- 当前专利权人： NEC COMPOUND SEMICONDUCTOR DEVICES, LTD.
- 当前专利权人地址： JP KAWASAKI-SHI
- 优先权： JP2003-282232 20030730
- 主分类号： H03F3/68
- IPC分类号： H03F3/68 ; H03F1/34 ; H03F3/08 ; H04B10/40 ; H04B10/50 ; H04B10/60 ; H04B10/67 ; H04B10/69 ; H01J40/14
摘要：
In a photocurrent-to-voltage conversion apparatus for converting a photocurrent flowing through a light receiving element into a detection voltage, an amplifier, a feedback resistor and a clamping MOS transistor are provided. The amplifier has an input connected to the light receiving element and an output for generating the detection voltage, and includes (2n+1) inverter stages connected in series where n is 1, 2 . . . . The feedback resistor and the clamping transistor are connected between the output and input of the amplifier. The clamping MOS transistor is controlled by an output voltage of a non-final inverter one of the inverter stages.
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