Quasi-digital conversion for resistive devices: Application in GMR-based IC current sensors

Author

Reig, Candid ; Cubells, M.D. ; Madrenas, J. ; De Marcellis, A. ; Cardoso, Susana ; Freitas, P.P.

Author_Institution

Dept. of Electron. Eng., Univ. of Valencia, Burjassot, Spain

fYear

2013

Firstpage

135

Lastpage

138

Abstract

Resistive devices, including sensors, are used in a huge range of applications within different scenarios. When a complete system is considered, a quasi-digital output is often recommendable. If the conversion is operated at device level, some problems such as noise disturbs, insertion losses and so on, can be reduced. In this work, we describe a resistance-to-frequency (R-f) converter with a suggested application in low current monitoring by means of GiantMagnetoResistance (GMR) sensors. Specific devices have been designed and microfabricated. The system has been tested by means of discrete components with a PCB. The complete microsystem monolithic integration in a standard CMOS technology has been also analyzed.

Keywords

CMOS integrated circuits; frequency convertors; giant magnetoresistance; GMR sensor; IC current sensor; PCB; giant magnetoresistance; low current monitoring; microsystem monolithic integration; quasidigital conversion; resistance-to-frequency converter; resistive device; standard CMOS technology; Current measurement; Integrated circuits; Magnetic sensors; Oscillators; Resistance; Voltage measurement; Analog IC; Current measurement; GMR sensor; Oscillator; Resistance-to-frequency converter;

fLanguage

English

Publisher

ieee

Conference_Titel

Electron Devices (CDE), 2013 Spanish Conference on

Conference_Location

Valladolid

Print_ISBN

978-1-4673-4666-5

Electronic_ISBN

978-1-4673-4667-2

Type

conf

DOI

10.1109/CDE.2013.6481361

Filename

6481361