发明授权
US5053650A Monolithic semiconductor integrated circuit device having current
adjusting circuit
失效
具有电流调节电路的单片半导体集成电路器件
- 专利标题： Monolithic semiconductor integrated circuit device having current adjusting circuit
- 专利标题（中）： 具有电流调节电路的单片半导体集成电路器件
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申请号： US457308申请日： 1989-12-26
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公开(公告)号： US5053650A公开(公告)日： 1991-10-01
- 发明人: Yuichi Ohkubo , Satoru Sekiguchi , Toshihiko Watanabe , Nobuaki Yoneya
- 申请人： Yuichi Ohkubo , Satoru Sekiguchi , Toshihiko Watanabe , Nobuaki Yoneya
- 申请人地址： JPX Tokyo JPX Tokyo
- 专利权人： Hitachi, Ltd.,Hitachi Microcomputer Engineering Ltd.
- 当前专利权人： Hitachi, Ltd.,Hitachi Microcomputer Engineering Ltd.
- 当前专利权人地址： JPX Tokyo JPX Tokyo
- 优先权： JPX63-330002 19881227
- 主分类号： H01L27/04
- IPC分类号： H01L27/04 ; H01L21/822 ; H03F3/45 ; H03G5/04 ; H03H3/00 ; H03H11/04
摘要：
A monolithic semiconductor integrated circuit device includes a differentially operative circuit section, an amplifying element connected to define a current flowing in the differentially operative circuit section and a circuit for adjusting a current flowing in the amplifying element to thereby compensate for variations of electric characteristics from one semiconductor device to another. The current adjusting circuit includes at least one amplifying element and a load resistance for the amplifying element in the current adjusting circuit. The load resistance has a structure suitable for a trimming operation to adjustably determine the resistance value of the load resistance. The amplifying elements are in a current mirror circuit connection with their control electrodes being concerned with each other so that the electric current flowing in the current path between the current receiving and delivering electrodes of the amplifying element connected to define the current flowing in the differentially operative circuit section is controlled by the adjustably determined resistance of the load resistance.
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