发明名称 |
Gain stage and offset voltage elimination method |
摘要 |
A gain stage and offset voltage elimination method. The gain stage includes an amplifier, condensers and a number of switches. The switches are arranged to discharge the condensers and then charge the condensors to the offset voltage during an initialize period. When an input voltage is applied to the gain stage, the condensers do not act as capacitive loads for the amplifier. The gain stage can thus more quickly charge the condensers since the charging speed is approximately equal to the slew rate of the amplifier. The period for initializing the gain stage can be shortened while minimizing the current consumed.
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申请公布号 |
US5880630(A) |
申请公布日期 |
1999.03.09 |
申请号 |
US19960729294 |
申请日期 |
1996.10.10 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
IWAMOTO, SHOICHI;SUYAMA, TAKESHI |
分类号 |
H03F1/30;H03F3/00;(IPC1-7):H03F1/14 |
主分类号 |
H03F1/30 |
代理机构 |
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地址 |
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