Title :
CMOS quasi-digital temperature sensor for battery operated systems
Author :
Azcona, C. ; Calvo, B. ; Medrano, N. ; Celma, S.
Author_Institution :
Group of Electron. Design-I3A, Univ. of Zaragoza, Zaragoza, Spain
Abstract :
A high performance 1.2 V-0.18 μm CMOS quasi-digital temperature sensor is presented with frequency output suitable to be used in battery operated systems. It is based on a multivibrator current-to-frequency converter and works properly over a temperature range of -40 to + 120°C, exhibiting a linear sensitivity of 442 Hz/°C with accuracy better than 1.0°C and a power consumption of 1.8 μW.
Keywords :
CMOS integrated circuits; battery management systems; digital instrumentation; low-power electronics; temperature sensors; CMOS quasidigital temperature sensor; battery operated system; multivibrator current to frequency converter; power 1.8 muW; size 0.18 mum; voltage 1.2 V;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2013.2299
