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. 16, 2017
Filed:
Aug. 08, 2016
Xcelsem, Llc, Santa Clara, CA (US);
Gregory L Schaffer, Cupertino, CA (US);
Maarten J Fonderie, Santa Clara, CA (US);
XCELSEM, LLC, Santa Clara, CA (US);
Abstract
A high speed gain stage including regenerative feedback that forces one output high and one output low providing a two-state output. A differential pair of input transistors of a first conductivity type have respective current terminals coupled between a source node and first and second output nodes and have respective control terminals that receive the analog input voltages. A current source provides source current to the source node. The gain stage includes a differential pair of bias transistors of a second conductivity type having respective current terminals coupled between the first and second output nodes and a reference voltage and having respective control terminals coupled to a bias node. A pair of current-driven transistors of the second conductivity type are cross-coupled at the outputs and to a common node to provide the regenerative feedback. Another transistor is coupled between the common node and the reference voltage to increase switching speed.