发明名称 |
Semiconductor integrated circuit |
摘要 |
The output of a differential amplifier circuit group (PA) that amplifies signals inputted to input PINs is connected to a final-stage differential amplifier circuit (PAn). The output of the differential amplifier circuit (PAn) is connected to a detection (DET) circuit. A detect signal sent from the DET circuit is outputted to the (-) side input of a comparator. A bias signal (BP) outputted from a bias circuit is inputted to the base of a PMOS transistor of a source follower circuit. An output signal (SFOUT) outputted from a source terminal thereof is inputted to the (+) side input of the comparator. A result of comparison between the bias signal (BP) and the output signal (SFOUT) is outputted from the comparator as an output signal (COMPOUT).
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申请公布号 |
US2005179490(A1) |
申请公布日期 |
2005.08.18 |
申请号 |
US20040911530 |
申请日期 |
2004.08.05 |
申请人 |
OKI ELECTRIC INDUSTRY CO., LTD. |
发明人 |
HAMAMOTO TAKASHI |
分类号 |
H03F3/45;H03F3/68;H04L27/06;(IPC1-7):H03F3/45 |
主分类号 |
H03F3/45 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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