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:
Mar. 08, 2016
Filed:
Nov. 26, 2013
Broadcom Corporation, Irvine, CA (US);
Yuan Yao, Irvine, CA (US);
Jing Wang, Riverside, CA (US);
Junhua Tan, Tustin, CA (US);
Mostafa Mohammad Hany Ali Hammad, Irvine, CA (US);
Hui Pan, Trabuco Canyon, CA (US);
BROADCOM CORPORATION, Irvine, CA (US);
Abstract
Aspects of rail-to-rail line drivers using differential cascode bootstrapping are described. In one embodiment, a differential line driver includes first and second differential driver output legs. The first output leg includes a first p-type cascode stack and a first n-type cascode stack, and the second output leg includes a second p-type cascode stack and a second n-type cascode stack. The differential line driver also includes a differential cascode bootstrap circuit arrangement coupled to an output of the differential line driver. More particularly, the differential cascode bootstrap circuit arrangement is coupled between the first and second differential output driver legs and the output of the differential line driver. According to aspects of the embodiments described herein, differential line drivers with overvoltage protection and rail-to-rail output swings may be achieved. Further, the differential line drivers may be generally smaller, with cascode stack transistors of reduced in size.