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, 2023
Filed:
Oct. 09, 2020
Applicant:
Medtronic, Inc., Minneapolis, MN (US);
Inventors:
Krishna Pramod Madabhushi, Chandler, AZ (US);
Robert W. Hocken, Jr., Scottsdale, AZ (US);
Assignee:
MEDTRONIC, INC., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61N 1/36 (2006.01); H03M 1/68 (2006.01); H03M 1/78 (2006.01); A61N 1/05 (2006.01);
U.S. Cl.
CPC ...
A61N 1/36135 (2013.01); A61N 1/36125 (2013.01); H03M 1/68 (2013.01); H03M 1/78 (2013.01); A61N 1/0551 (2013.01);
Abstract
The disclosure describes an implementation of a combinational thermometric-R2R that includes a thermometric DAC circuit to output the coarse output steps, an R2R circuit to control the fine output steps, and a resistor in series with the thermometric and R2R circuits. The techniques of this disclosure implement a fine resolution DAC, on the order of two nanoamps per bit, that operates at low current, yet maintains monotonicity throughout the DAC output range.