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:
Sep. 17, 2013
Filed:
Apr. 12, 2012
Applicants:
Roderick Mclachlan, Edinburgh, GB;
Avinash Gutta, Bangalore, IN;
Fergus Downey, Edinburgh, GB;
Inventors:
Assignee:
Analog Devices, Inc., Norwood, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/66 (2006.01);
U.S. Cl.
CPC ...
Abstract
A digital-to-analog converter (DAC) includes a resistor leg that is switchably connected to a first voltage reference via an n-channel MOSFET and to a second voltage reference via a p-channel MOSFET, and a generator circuit. The generator circuit further includes a first sub-circuit for generating a drive voltage (Vgn) and a second sub-circuit for a) offsetting the first drive voltage by an offset voltage to generate a second drive voltage, and b) supplying the second drive voltage to a gate of one of the first NMOS and the first PMOS.