发明名称 |
Preamplifier with improved CMRR and temperature stability and associated amplification method |
摘要 |
A preamplifier that is substantially resilient to temperature and input common-mode variations includes a feedback network coupled to regulate a common mode voltage of the preamplifier. The preamplifier can be implemented as a first stage of a multi-stage op amp, which provides an intermediate output to a next stage of the op amp. The feedback and associated temperature stability can be facilitated by downshifting the output voltage of the preamplifier and increasing the output impedance of the preamplifier.
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申请公布号 |
US6664912(B1) |
申请公布日期 |
2003.12.16 |
申请号 |
US20020243593 |
申请日期 |
2002.09.13 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
ZANCHI ALFIO |
分类号 |
H03F3/45;(IPC1-7):H03M1/44 |
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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