发明授权
- 专利标题： Differential pair with constant offset
- 专利标题（中）： 具有恒定偏移的差分对
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申请号： US12620351申请日： 2009-11-17
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公开(公告)号： US08183922B2公开(公告)日： 2012-05-22
- 发明人: Jimmy Fort , Thierry Soude , Michel Cuenca , Florent Garcia , Franck Strazzieri
- 申请人： Jimmy Fort , Thierry Soude , Michel Cuenca , Florent Garcia , Franck Strazzieri
- 申请人地址： FR
- 专利权人： Atmei Rousset S.A.S.
- 当前专利权人： Atmei Rousset S.A.S.
- 当前专利权人地址： FR
- 代理机构： Fish & Richardson P.C.
- 主分类号： H03F3/45
- IPC分类号： H03F3/45
摘要：
A bias current is generated for an unbalanced differential pair that is proportional to the transconductance gain of the differential pair. When the transconductance gain varies (e.g., due to temperature variations), the bias current varies in proportion thereby maintaining a constant offset voltage. In some implementations, a voltage to current converter circuit generates the bias current from a constant reference voltage that is independent of temperature and voltage supply variations (e.g., a bandgap reference voltage).
公开/授权文献
- US20110115560A1 DIFFERENTIAL PAIR WITH CONSTANT OFFSET 公开/授权日：2011-05-19
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