A 40 nW CMOS-based temperature sensor with calibration free inaccuracy within ±0.6◦c
Loading...
Access rights
openAccess
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
Authors
Date
2019-11-01
Major/Subject
Mcode
Degree programme
Language
en
Pages
Series
Electronics (Switzerland), Volume 8, issue 11
Abstract
In this study, a temperature equivalent voltage signal was obtained by subtracting output voltages received from two individual temperature sensors. These sensors work in the subthreshold region and generate the output voltage signals that are proportional and complementary to the temperature. Over the temperature range of −40◦C to +85◦C without using any calibration method, absolute temperature inaccuracy less than ±0.6◦C was attained from the measurement of five prototypes of the proposed temperature sensor. The implementation was done in a standard 0.18 µm CMOS technology with a total area of 0.0018 mm2. The total power consumption is 40 nW for a supply voltage of 1.2 V measured at room temperature.Description
Keywords
Calibration free, CMOS, CTAT, PTAT, Temperature sensor, Ultra low power
Other note
Citation
Chouhan, S S & Halonen, K 2019, ' A 40 nW CMOS-based temperature sensor with calibration free inaccuracy within ±0.6 ◦ c ', Electronics (Switzerland), vol. 8, no. 11, 1275 . https://doi.org/10.3390/electronics8111275