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:
Jun. 04, 2013
Filed:
Apr. 10, 2012
Applicant:
Siddhartha Gopal Krishna, New Delhi, IN;
Inventor:
Siddhartha Gopal Krishna, New Delhi, IN;
Assignee:
Freescale Semiconductor, Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A system to interface analog-to-digital converters to inputs with arbitrary common-modes includes a common-mode voltage amplifier circuit and a PGA circuit connected to the common-mode voltage amplifier circuit. The common-mode voltage amplifier and PGA circuits receive first and second analog input signals. The PGA circuit eliminates the arbitrary common-modes from the first and second analog input signals based on an output of the common-mode voltage amplifier circuit.