A Novel on-chip ultra-low power temperature sensing scheme

Author

Chouhan, S.S. ; Halonen, Kari

Author_Institution

Dept. of Micro & Nano Sci., Aalto Univ., Espoo, Finland

fYear

2012

fDate

12-13 Nov. 2012

Firstpage

1

Lastpage

4

Abstract

In this work, a CMOS based temperature sensor with Nano-watt power consumption is presented. The proposed scheme utilizes sensitivity of MOS towards temperature in subthreshold region. Sensor is composed of PMOS and NMOS group which subsequently generates voltages that are having positive and negative temperature coefficients respectively. It has been observed that on subtracting these voltages, resultant shows, highly linear dependence with temperature. The proposed scheme is implemented using AMS 0.35 μm standard CMOS technology, and it shows wide temperature sensing ranges from -40 °C to +140 °C with a power consumption of tens of Nano watts.

Keywords

CMOS integrated circuits; low-power electronics; temperature sensors; AMS 0.35 μm standard CMOS technology; CMOS based temperature sensor; NMOS group; PMOS group; nanowatt power consumption; negative temperature coefficients; on-chip ultra-low power temperature sensing scheme; positive temperature coefficients; power consumption; size 0.35 mum; subthreshold region; temperature -40 degC to 140 degC; CMOS integrated circuits; MOS devices; Temperature; Temperature dependence; Temperature sensors; Threshold voltage; CMOS; Subthreshold; low power; temperature sensor;

fLanguage

English

Publisher

ieee

Conference_Titel

NORCHIP, 2012

Conference_Location

Cpenhagen

Print_ISBN

978-1-4673-2221-8

Electronic_ISBN

978-1-4673-2222-5

Type

conf

DOI

10.1109/NORCHP.2012.6403108

Filename

6403108