发明授权
US06741194B1 Methods and apparatus for detecting out-of-range signals in an analog-to-digital converter
有权
用于在模拟 - 数字转换器中检测超出范围信号的方法和装置
- 专利标题： Methods and apparatus for detecting out-of-range signals in an analog-to-digital converter
- 专利标题（中）： 用于在模拟 - 数字转换器中检测超出范围信号的方法和装置
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申请号： US10328360申请日： 2002-12-23
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公开(公告)号： US06741194B1公开(公告)日： 2004-05-25
- 发明人: Thierry Cassagnes , Douglas A. Garrity , Ira G. Miller
- 申请人： Thierry Cassagnes , Douglas A. Garrity , Ira G. Miller
- 主分类号： H03M106
- IPC分类号： H03M106
摘要：
An analog-to-digital (A/D) converter suitable for use with redundant signed digit (RSD) coverter stages is provided with an out-of-range (OOR) detection circuit. If an out-of-range input signal is detected, the detection circuit identifies the OOR condition so that the converter can take remedial action. Examples of remedial action may include adjusting the gain of one or more converter stages, adjusting the analog input signal provided to one or more converter stages, and/or adjusting the digital output of the converter to reflect the OOR condition. The ORR detection circuit may receive its input from a converter stage that is distinct from the stage providing the most significant bit (MSB) of the digital output to preserve the resolution of the most significant bit.
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