Patents

US 12742689 B2: Resistive thermometer excitation and calibration

Granted
2026-09-22
Filed
2023-11-01 application 18499514
Type
Utility · 20 claims
Elsewhere
Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗

Abstract

Circuitry and measurement approaches are described herein that can be used to reduce or suppress sensitivity to variation of sensor properties or characteristics over time for a respective monolithically integrated resistive temperature sensor. Such measurement approaches can also help to suppress measurement variations between sensors, such as to provide stable temperature measurement characteristics across locations and over time for the respective different temperature measurement sites on or within the integrated circuit package. The approaches described herein can also reduce or suppress sensitivity to variation in excitation source characteristics, such as using a relative indication (e.g., a ratio) of measured signal values corresponding to a respective temperature sensor and a co-integrated reference device. Calibration or absolute temperature measurements can be performed, such as using an off-chip (e.g., off-die or off-package) calibration reference. The off-chip calibration reference can be used to establish calibration data for other measurements.

Source: PTBLXML, file of 2026-09-22 (ipgb20260922.xml).

Assignees

AssigneeTypePlaceAlso on furp.orgSource
Analog Devices, Inc. 2,069 patentsUS company or organizationWilmington, MAANALOG DEVICES INC SEC filer EXACT medium confidence: identical full name, one of each nationallyPTBLXML, file of 2026-09-22

Inventors

InventorPlacePatentsPerson pageSource
Michael C.W. ColnLexington, MA28PTBLXML, file of 2026-09-22
Phillip Michel NadeauCambridge, MAPTBLXML, file of 2026-09-22
Qingdong MengBelmont, MA7PTBLXML, file of 2026-09-22

CPC categories

SubclassCategoryFirst groupSource
G01KMeasuring temperature; measuring quantity of heat; thermally-sensitive elements not otherwise provided forG01K7/20PTBLXML, file of 2026-09-22

Cooperative Patent Classification, as currently assigned (one row per subclass).

Assignments and security interests

No recorded assignments or security interests on file for this patent.

USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.