发明授权
- 专利标题: Gain calibration
- 专利标题(中): 增益校准
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申请号: US13424671申请日: 2012-03-20
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公开(公告)号: US08497790B1公开(公告)日: 2013-07-30
- 发明人: Donald E. Lewis , Ryan James Kier , Paul Talmage Watkins , Rex K. Hales , Yusuf Haque
- 申请人: Donald E. Lewis , Ryan James Kier , Paul Talmage Watkins , Rex K. Hales , Yusuf Haque
- 申请人地址: US CA San Jose
- 专利权人: Crest Semiconductors, Inc.
- 当前专利权人: Crest Semiconductors, Inc.
- 当前专利权人地址: US CA San Jose
- 代理机构: Van Cott, Bagley, Cornwall & McCarthy P.C.
- 代理商 Steven L. Nichols
- 主分类号: H03M1/10
- IPC分类号: H03M1/10
摘要:
A pipelined Analog-to-Digital Converter (ADC) includes circuitry to characterize capacitors associated with a Multiplying-Digital-to-Analog Converter (MDAC) of a stage of said pipelined ADC, said capacitors contributing to a gain of said pipelined ADC, circuitry to connect a subset of said capacitors not currently being characterized to reference signals of said pipelined ADC such that a residue signal of said stage stays within an input range of an instrument measuring said residue signal, circuitry to calculate said gain of said pipelined ADC using said capacitor characterizations, and an output adjusting component to digitally change an output of said pipelined ADC to compensate for said calculated gain.
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