发明名称 |
Integratable comparator circuit with adjustable response threshold |
摘要 |
A comparator circuit includes a series circuit having a first MOSFET and a second MOSFET. An inverter has a third MOSFET and a fourth MOSFET. A node between the first and second MOSFETs is connected to a gate terminal of the fourth MOSFET. An input voltage is applied between ground and the second MOSFET. A series circuit of a fifth MOSFET and a Zener diode polarized in the blocking direction is connected parallel to the fourth MOSFET. A response threshold of the comparator circuit is defined by adjusting a resistance of the Zener diode occurring in the reverse direction. The resistance is adjusted through the use of a voltage pulse that can be applied to a terminal connected to a cathode of the Zener diode.
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申请公布号 |
US5731721(A) |
申请公布日期 |
1998.03.24 |
申请号 |
US19960699233 |
申请日期 |
1996.08.19 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
GANTIOLER, JOSEF-MATTHIAS;HEIL, HOLGER |
分类号 |
H03K17/30;(IPC1-7):H03K5/153 |
主分类号 |
H03K17/30 |
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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