发明授权
- 专利标题： High speed comparator with a precise sampling instant
- 专利标题（中）： 高速比较器具有精确的采样瞬间
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申请号： US374866申请日： 1995-01-19
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公开(公告)号： US5498982A公开(公告)日： 1996-03-12
- 发明人: Venugopal Gopinathan , Martin J. Izzard
- 申请人： Venugopal Gopinathan , Martin J. Izzard
- 申请人地址： TX Dallas
- 专利权人： Texas Instruments Incorporated
- 当前专利权人： Texas Instruments Incorporated
- 当前专利权人地址： TX Dallas
- 主分类号： H03K3/2885
- IPC分类号： H03K3/2885 ; H03K19/086
摘要：
A method and apparatus for reducing aperture uncertainty and kick-back noise in high speed comparators is disclosed. The disclosed method is used in a comparator for comparing a first signal (INP) and a second signal (INM) and having a track mode and a regenerative mode of operation. The steps of this method are as follows. A first input current representing the first signal is switched through a first output node (OUTP) during the track mode and a second input current representing the second signal is switched through a second output node (OUTM) during the track mode. During the regenerative mode, approximately half of the first input current is switched through the first output node (OUTP) and approximately half of the first input current is switched through the second output node (OUTM). Also during the regenerative mode, approximately half of the second input current is switched through the first output node and approximately half of the second input current is switched through the second output node.
公开/授权文献
- US4986643A Lens system capable of close-up photographing 公开/授权日：1991-01-22
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