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1.发明授权ANALOG/DIGITALWANDLER MIT EINER SAR-TOPOLOGIE SOWIE ZUGEHÖRIGES VERFAHREN 有权WITH A SAR拓扑和相关方法模拟/数字转换器
公开(公告)号：EP2286515B1
公开(公告)日：2012-02-01
申请号：EP09761502.5
申请日：2009-06-12
发明人： MANGLER, Andreas
CPC分类号： H03M1/0636 , H03M1/0626 , H03M1/0639 , H03M1/0658 , H03M1/0682 , H03M1/0827 , H03M1/122 , H03M1/20 , H03M1/46
摘要： Disclosed is an analog/digital converter that has an SAR topology and comprises a differential input filter (15). A signal line (16) and a signal reference line (17) are conducted via a differential multiplexer channel as a differential source for each signal source. The converter further comprises a digital mean value generator for generating mean values of the over-sampled input voltage signal. Furthermore, a chopper stage is provided. The voltage to be measured is applied to a first input of the multiplexer while being applied in an inverted manner to a second input of the multiplexer (14) in such a way that DC voltage offset portions of the voltage to be measured are reduced or eliminated by means of the chopper stage. The disclosed analog/digital converter can operate in real time, can be universally used, and combines the positive properties of various conversion processes in one module.
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2.发明公开ANALOG/DIGITALWANDLER MIT EINER SAR-TOPOLOGIE SOWIE ZUGEHÖRIGES VERFAHREN 有权WITH A SAR拓扑和相关方法模拟/数字转换器
公开(公告)号：EP2286515A2
公开(公告)日：2011-02-23
申请号：EP09761502.5
申请日：2009-06-12
发明人： MANGLER, Andreas
IPC分类号： H03M1/08
CPC分类号： H03M1/0636 , H03M1/0626 , H03M1/0639 , H03M1/0658 , H03M1/0682 , H03M1/0827 , H03M1/122 , H03M1/20 , H03M1/46
摘要： Disclosed is an analog/digital converter that has an SAR topology and comprises a differential input filter (15). A signal line (16) and a signal reference line (17) are conducted via a differential multiplexer channel as a differential source for each signal source. The converter further comprises a digital mean value generator for generating mean values of the over-sampled input voltage signal. Furthermore, a chopper stage is provided. The voltage to be measured is applied to a first input of the multiplexer while being applied in an inverted manner to a second input of the multiplexer (14) in such a way that DC voltage offset portions of the voltage to be measured are reduced or eliminated by means of the chopper stage. The disclosed analog/digital converter can operate in real time, can be universally used, and combines the positive properties of various conversion processes in one module.
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