发明授权
US08482342B2 Circuit for generating a reference voltage with compensation of the offset voltage
有权
用于产生具有补偿偏移电压的参考电压的电路
- 专利标题： Circuit for generating a reference voltage with compensation of the offset voltage
- 专利标题（中）： 用于产生具有补偿偏移电压的参考电压的电路
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申请号： US12913682申请日： 2010-10-27
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公开(公告)号： US08482342B2公开(公告)日： 2013-07-09
- 发明人: Antonino Conte , Mario Micciche , Maria Giaquinta , Rosario Roberto Grasso
- 申请人： Antonino Conte , Mario Micciche , Maria Giaquinta , Rosario Roberto Grasso
- 申请人地址： IT Agrate Brianza
- 专利权人： STMicroelectronics S.r.l.
- 当前专利权人： STMicroelectronics S.r.l.
- 当前专利权人地址： IT Agrate Brianza
- 代理机构： Graybeal Jackson LLP
- 优先权： ITMI2009A1897 20091030
- 主分类号： G05F1/567
- IPC分类号： G05F1/567 ; G05F1/575 ; H03F1/30 ; H03L5/00
摘要：
An embodiment of a circuit includes first and second branches, an amplifier, a compensation circuit, and a bias unit. The first and second branches are respectively operable to generate first and second currents. The amplifier has a first amplifier input node coupled to the first branch, a second amplifier input node coupled to the second branch, an amplifier output node coupled to the first and second branches, and a first compensation node. The compensation unit is operable to provide a first offset-compensation signal to the first compensation node. And the first bias unit is operable to provide first and second bias signals to the first and second input nodes, respectively, such that the amplifier is operable to cause the first current to approximately equal the second current.
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