发明名称 |
Programmable gain amplifier with self-adjusting offset correction |
摘要 |
Briefly, in accordance with one embodiment of the invention, a calibration circuit may detect a difference between first and second outputs of a differential output programmable gain amplifier to determine a dc offset at the differential output. In the event an offset is detected, a differential gain of the programmable gain amplifier may be adjusted until the offset is adjusted, or eliminated, to an acceptable predetermined value.
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申请公布号 |
US2004121735(A1) |
申请公布日期 |
2004.06.24 |
申请号 |
US20020329187 |
申请日期 |
2002.12.23 |
申请人 |
TSENG JAMES;KHALIL WALEED;NIKJOU BOBBY;JOHNSON LUKE A. |
发明人 |
TSENG JAMES;KHALIL WALEED;NIKJOU BOBBY;JOHNSON LUKE A. |
分类号 |
H03F3/45;(IPC1-7):H04B1/40;H04B1/38 |
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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