Next Article in Journal
A Relevance Vector Machine-Based Approach with Application to Oil Sand Pump Prognostics
Next Article in Special Issue
Crop Biometric Maps: The Key to Prediction
Previous Article in Journal
Laser Doppler Blood Flow Imaging Using a CMOS Imaging Sensor with On-Chip Signal Processing
Previous Article in Special Issue
Sensors Systems for the Automation of Operations in the Ship Repair Industry
Article Menu

Export Article

Open AccessArticle
Sensors 2013, 13(9), 12648-12662; doi:10.3390/s130912648

A 0.0016 mm2 0.64 nJ Leakage-Based CMOS Temperature Sensor

Departamento de Ingeniería Electrónica, ETSI Telecomunicación, Universidad Politécnica de Madrid, Avenida Complutense 30, 28040 Madrid, Spain
Author to whom correspondence should be addressed.
Received: 1 August 2013 / Revised: 3 September 2013 / Accepted: 9 September 2013 / Published: 18 September 2013
(This article belongs to the Special Issue State-of-the-Art Sensors Technology in Spain 2013)
View Full-Text   |   Download PDF [1813 KB, uploaded 21 June 2014]   |  


This paper presents a CMOS temperature sensor based on the thermal dependencies of the leakage currents targeting the 65 nm node. To compensate for the effect of process fluctuations, the proposed sensor realizes the ratio of two measures of the time it takes a capacitor to discharge through a transistor in the subthreshold regime. Furthermore, a novel charging mechanism for the capacitor is proposed to further increase the robustness against fabrication variability. The sensor, including digitization and interfacing, occupies 0.0016 mm2 and has an energy consumption of 47.7–633 pJ per sample. The resolution of the sensor is 0.28 °C, and the 3σ inaccuracy over the range 40–110 °C is 1.17 °C.
Keywords: temperature sensor; CMOS; ratio-based; leakage; DTM (Dynamic Thermal Management) temperature sensor; CMOS; ratio-based; leakage; DTM (Dynamic Thermal Management)
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Ituero, P.; López-Vallejo, M.; López-Barrio, C. A 0.0016 mm2 0.64 nJ Leakage-Based CMOS Temperature Sensor. Sensors 2013, 13, 12648-12662.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top