发明授权
- 专利标题： Method and apparatus for analog to digital conversion of small signals in the presence of a large DC offset
- 专利标题（中）： 存在大直流偏移的小信号的模数转换的方法和装置
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申请号： US12728391申请日： 2010-03-22
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公开(公告)号： US08284090B2公开(公告)日： 2012-10-09
- 发明人: Roberto Maurino
- 申请人： Roberto Maurino
- 申请人地址： US MA Norwood
- 专利权人： Analog Devices, Inc.
- 当前专利权人： Analog Devices, Inc.
- 当前专利权人地址： US MA Norwood
- 代理机构： Kenyon & Kenyon LLP
- 主分类号： H03M1/12
- IPC分类号： H03M1/12
摘要：
Embodiments of the present invention provide a hybrid analog to digital converter that may include a DAC coupled to a hybrid analog to digital converter input; an integrator having an input coupled to the hybrid analog to digital converter input and the DAC, and generating an integrator output; a comparator coupled to the integrator output and having a comparator output; a successive approximation register coupled to the comparator output; and a counter coupled to the comparator output to generate an hybrid analog to digital converter output. The hybrid analog to digital converter may be operable as a successive approximation register converter and a continuous time sigma delta converter.
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