Invention Grant
- Patent Title: Wide-swing cascode current mirror
- Patent Title (中): 宽摆频共源共栅电流镜
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Application No.: US12495412Application Date: 2009-06-30
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Publication No.: US08450992B2Publication Date: 2013-05-28
- Inventor: Ion C. Tesu , Riad Wahby
- Applicant: Ion C. Tesu , Riad Wahby
- Applicant Address: US TX Austin
- Assignee: Silicon Laboratories Inc.
- Current Assignee: Silicon Laboratories Inc.
- Current Assignee Address: US TX Austin
- Agency: O'Keefe, Egan, Peterman & Enders LLP
- Main IPC: G05F3/16
- IPC: G05F3/16 ; G05F3/20

Abstract:
A current mirror apparatus includes an input stage receiving an input current, Iin, and no additional bias current. The apparatus includes at least one output stage coupled to mirror the input current as an output current Iout. The input and output stages include insulated gate transistors. A minimum required voltage drop (Vin) across the input stage is approximately 2Von+2Vth, wherein Vth is a threshold voltage of a selected one of the insulated gate transistors, wherein Von is a drain-to-source saturation voltage of the selected transistor. A minimum required voltage drop (Vout) across the output stage is approximately 2Von.
Public/Granted literature
- US20100327843A1 Wide-Swing Cascode Current Mirror Public/Granted day:2010-12-30
Information query
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