发明授权
US07099204B1 Current sensing circuit with a current-compensated drain voltage regulation
有权
电流检测电路具有电流补偿漏极电压调节
- 专利标题: Current sensing circuit with a current-compensated drain voltage regulation
- 专利标题(中): 电流检测电路具有电流补偿漏极电压调节
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申请号: US11087944申请日: 2005-03-23
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公开(公告)号: US07099204B1公开(公告)日: 2006-08-29
- 发明人: Sameer Wadhwa , Bhimachar Venkatesh
- 申请人: Sameer Wadhwa , Bhimachar Venkatesh
- 申请人地址: US CA Sunnyvale
- 专利权人: Spansion LLC
- 当前专利权人: Spansion LLC
- 当前专利权人地址: US CA Sunnyvale
- 代理机构: Eschweiler & Associates, LLC
- 主分类号: G11C7/00
- IPC分类号: G11C7/00
摘要:
The present invention facilitates more accurate data reads by compensating for parasitic behavior—thus regulating the voltage at the drain of a core memory cell rather than at the output of a sensing circuit. More particularly, respective voltages at one or more nodes, such as the start of a bitline at a sensing circuit, for example, are adjusted to compensate for voltage drops that may occur due to parasitic behavior. Maintaining the substantially constant voltage levels at core memory cells allows comparisons to be made under ideal conditions while reducing the side leakages in virtual ground schemes. This mitigates margin loss and facilitates more reliable data sensing.
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