发明名称 |
Input stage for constant gm amplifier circuit and method |
摘要 |
An amplifier input stage having a constant input gm and including first and second differential transistor pair so as to provide operation with inputs at or near the upper and lower power supply rails. A comparator circuit operates to control which of the transistor pair is active based upon the relative magnitudes of the amplifier input stage inputs and a reference voltage.
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申请公布号 |
US6316995(B1) |
申请公布日期 |
2001.11.13 |
申请号 |
US20000587245 |
申请日期 |
2000.06.02 |
申请人 |
NATIONAL SEMICONDUCTOR CORPORATION |
发明人 |
CHEN SEAN S.;SHACTER STUART B. |
分类号 |
H03F3/45;H03F3/72;(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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