Invention Grant
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
- Patent Title: Circuit for generating a reference voltage with compensation of the offset voltage
- Patent Title (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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Application No.: US12913682Application Date: 2010-10-27
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Publication No.: US08482342B2Publication Date: 2013-07-09
- Inventor: Antonino Conte , Mario Micciche , Maria Giaquinta , Rosario Roberto Grasso
- Applicant: Antonino Conte , Mario Micciche , Maria Giaquinta , Rosario Roberto Grasso
- Applicant Address: IT Agrate Brianza
- Assignee: STMicroelectronics S.r.l.
- Current Assignee: STMicroelectronics S.r.l.
- Current Assignee Address: IT Agrate Brianza
- Agency: Graybeal Jackson LLP
- Priority: ITMI2009A1897 20091030
- Main IPC: G05F1/567
- IPC: G05F1/567 ; G05F1/575 ; H03F1/30 ; H03L5/00
Abstract:
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.
Public/Granted literature
- US20110102049A1 CIRCUIT FOR GENERATING A REFERENCE VOLTAGE WITH COMPENSATION OF THE OFFSET VOLTAGE Public/Granted day:2011-05-05
Information query
IPC分类:
