The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 28, 2013
Filed:
Jun. 30, 2009
Ion C. Tesu, Austin, TX (US);
Riad Wahby, Austin, TX (US);
Ion C. Tesu, Austin, TX (US);
Riad Wahby, Austin, TX (US);
Silicon Laboratories Inc., Austin, TX (US);
Abstract
A current mirror apparatus includes an input stage receiving an input current, I, and no additional bias current. The apparatus includes at least one output stage coupled to mirror the input current as an output current I. The input and output stages include insulated gate transistors. A minimum required voltage drop (V) across the input stage is approximately 2V+2V, wherein Vis a threshold voltage of a selected one of the insulated gate transistors, wherein Vis a drain-to-source saturation voltage of the selected transistor. A minimum required voltage drop (V) across the output stage is approximately 2V.