Patent · US Active

Temperature sensing with feedback digital-analog converter (DAC) of delta-sigma modulator

US9970825B2 · kind B2 · utility

3Cited by

5References

20Claims

0Family size

Assignee

CIRRUS LOGIC, INC. · US

Inventors

Ramin Zanbaghi · Austin, US
John L. Melanson · Austin, US

Key dates

Filing date	Aug 14, 2015
Grant date	May 15, 2018
Priority date	—
Expiry date	Jul 27, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG01K2219/00
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A delta-sigma modulator may be used to generate temperature information within an integrated circuit. The delta-sigma modulator may include a loop filter, a quantizer, and a feedback digital-to-analog converter (DAC). Temperature sensing elements may be incorporated into the feedback DAC of the delta-sigma modulator. Temperature information is then processed in the loop filter of the delta-sigma modulator and output in an average voltage value of a digital signal output from the delta-sigma modulator.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.