Electrothermal Filters for No-Trim Temperature Sensors

Master thesis (2019)

Authors

D. Liu Electrical Engineering, Mathematics and Computer Science

Contributors

S. Pan Electronic Instrumentation - EEMCS (mentor)
Kofi A.A. Makinwa Microelectronics (mentor)
K.A.A. Makinwa Microelectronics (mentor)
Faculty
Electrical Engineering, Mathematics and Computer Science, Electrical Engineering, Mathematics and Computer Science
Copyright: © 2019 Daguang Liu
More Info
expand_more

Published Date

25-10-2019

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Faculty

Electrical Engineering, Mathematics and Computer Science

Abstract

This thesis describes the design and characterization of thermistor-based electrothermal filters (ETFs) intended for use in high-accuracy CMOS temperature sensors. ETFs have been previously realized by placing an on-chip heater in close proximity to an on-chip thermopile, which then picks up the thermally-delayed signals generated by the heater. This delay is a well-defined function of absolute temperature and can be used as the basis for highly accurate temperature sensors. In this work, the thermopiles are replaced by a thermistor, resulting in greater sensitivity and higher resolution. Measurements show that the new ETFs can achieve 3.6m℃ resolution in a conversion time of 1s and 0.2℃(3ó ó) untrimmed inaccuracy from 30℃ to 60℃.

Files

Msc_thesis_DaguangLiu_4739760.... (pdf)
Unknown license
warning

File under embargo until 01-01-2025