Invention Grant
US08378740B2 Technique to minimize VDS mismatch driven voltage swing variation in open drain transmitter
有权
最小化开漏发射器中VDS失配驱动电压摆幅变化的技术
- Patent Title: Technique to minimize VDS mismatch driven voltage swing variation in open drain transmitter
- Patent Title (中): 最小化开漏发射器中VDS失配驱动电压摆幅变化的技术
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Application No.: US12980724Application Date: 2010-12-29
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Publication No.: US08378740B2Publication Date: 2013-02-19
- Inventor: Nitin Gupta
- Applicant: Nitin Gupta
- Applicant Address: NL Amsterdam
- Assignee: STMicroelectronics International N.V.
- Current Assignee: STMicroelectronics International N.V.
- Current Assignee Address: NL Amsterdam
- Agency: Hogan Lovells US LLP
- Main IPC: G05F1/10
- IPC: G05F1/10
Abstract:
A switching circuit includes a source follower current mirror having an input, an output, a first source terminal, a bias terminal, and a second source terminal; a current source coupled to the input of the current mirror; an output terminal coupled to the output of the current mirror; a first bias transistor coupled to the first source terminal; a second bias transistor coupled to bias terminal of the current mirror; and a driver transistor coupled to the second source terminal. An input transistor in the current mirror is sized such that the input voltage is substantially independent of the supply voltage.
Public/Granted literature
- US20120169410A1 TECHNIQUE TO MINIMIZE VDS MISMATCH DRIVEN VOLTAGE SWING VARIATION IN OPEN DRAIN TRANSMITTER Public/Granted day:2012-07-05
Information query
IPC分类:
