发明名称 |
MAGNETIC SENSOR |
摘要 |
<p>A magnetic sensor with a signal processing circuit includes a magnetic sensor section 4 composed of a compound semiconductor thin film or a magnetic thin film, and a signal processing circuit 5 for amplifying a magnetic signal the magnetic sensor section detects as an electrical output. The signal processing circuit 5 includes an operational amplifier 51 and a constant current circuit 52 for carrying out feedback. The constant current circuit 52 in the signal processing circuit 5 includes a plurality of resistors with two or more different temperature coefficients, and the current output from the constant current circuit has a temperature coefficient inversely proportional to the temperature coefficient of the combined resistance of the plurality of the resistors. <IMAGE></p> |
申请公布号 |
EP0964259(A1) |
申请公布日期 |
1999.12.15 |
申请号 |
EP19980905712 |
申请日期 |
1998.02.27 |
申请人 |
ASAHI KASEI ELECTRONICS CO. LTD.;ASAHI KASEI KOGYO KABUSHIKI KAISHA |
发明人 |
ISHIBASHI, KAZUTOSHI;SHIBASAKI, ICHIRO |
分类号 |
G01R33/07;G01D3/036;(IPC1-7):G01R33/07;H01L43/06 |
主分类号 |
G01R33/07 |
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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