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. 16, 2008
Filed:
Jul. 31, 2006
Steven C. Rose, Beverly, MA (US);
Richard E. Schreier, Andover, MA (US);
Steven C. Rose, Beverly, MA (US);
Richard E. Schreier, Andover, MA (US);
Analog Devices, Inc., Norwood, MA (US);
Abstract
A low-noise programmable current source includes an output digital to analog converter for providing an output load current; and a control circuit, responsive to an input defining a predetermined load current for generating, for the digital to analog converter, a control word and a control voltage; the control word and the control voltage drive the digital to analog converter to produce the predetermined load current and the control voltage sets the compliance voltage of the digital to analog converter to minimize current noise in the digital to analog converter.