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.

Date of Patent:
Dec. 19, 2017

Filed:

Mar. 07, 2017
Applicant:

Analog Devices, Inc., Norwood, MA (US);

Inventors:

Mikael Mortensen, Cambridge, MA (US);

Eric G. Nestler, Long Beach Township, NJ (US);

Assignee:

ANALOG DEVICES, INC., Norwood, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/12 (2006.01); H03M 1/00 (2006.01); H03M 1/80 (2006.01);
U.S. Cl.
CPC ...
H03M 1/1245 (2013.01); H03M 1/00 (2013.01); H03M 1/12 (2013.01); H03M 1/804 (2013.01);
Abstract

A sampled analog circuit is divided into at least two segments, each segment receiving sampled analog data and a respective subset of bits of a filter coefficient. The at least two segments can have digital-to-capacitance circuits with substantially identical ranges of capacitance values. One or more outputs from the segments can be scaled to reflect a position of the subset of bits in the bits of the filter coefficient, and thereafter added in the analog domain to produce a filtered output signal that may then be digitized. Alternatively, the outputs from the segments may be digitized before being scaled and/or added in the digital domain.


Find Patent Forward Citations

Loading…