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:
May. 16, 2006
Filed:
Aug. 25, 2004
Kaushal Kumar Ja, Bangalore, IN;
Arindam Raychaudhuri, Bangalore, IN;
Michael T. Tuthill, Raheen Cross, IE;
William Hunt, Castletroy, IE;
David A. Phelan, Raheen, IE;
Colin G. Lyden, Baltimore, IE;
Kaushal Kumar Ja, Bangalore, IN;
Arindam Raychaudhuri, Bangalore, IN;
Michael T. Tuthill, Raheen Cross, IE;
William Hunt, Castletroy, IE;
David A. Phelan, Raheen, IE;
Colin G. Lyden, Baltimore, IE;
Analog Devices, Inc., Norwood, MA (US);
Abstract
A DAC architecture is provided which is monotonic in operation despite any mismatches in the components. The architecture is a segmented architecture and hence it is area efficient. This is achieved by effecting a generation of analog voltages by driving current sources to resistors in response to digital input. In a preferred embodiment, the invention provides a resistor string coupled between output and vref-, and set of current sources. The current sources are switched to nodes between resistors to generate voltages at the output.