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:
Apr. 23, 2019
Filed:
May. 16, 2018
Nxp B.v., Eindhoven, NL;
Kristof Blutman, Eindhoven, NL;
Sebastien Antonius Josephus Fabrie, Eindhoven, NL;
Juan Diego Echeverri Escobar, Veldhoven, NL;
Ajay Kapoor, Eindhoven, NL;
Jose de Jesus Pineda de Gyvez, Eindhoven, NL;
Hamed Fatemi, Eindhoven, NL;
NXP B.V., Eindhoven, NL;
Abstract
A level shifter circuit is described herein for shifting a signal from a first voltage domain to a second voltage domain. The level shifter circuit includes two current paths between a supply terminal of the first voltage domain and a supply terminal of the second voltage domain. The first and second current paths each include a differential transistor that receives a signal from a pulse generator in a first voltage domain. The pulse generator provides pulses to the differential transistors based on an input signal to be translated to the second voltage domain. The level shifter includes a latch circuit in the second voltage domain that includes two inputs where each input is biased at a node of one of the current paths. Each current path includes a bias transistor whose control terminal receives a compensated biasing voltage for biasing the bias transistor. The compensated biasing voltage is compensated to account for drive strength variation of at least one transistor in each current path.