A current-mode interface circuit for a piezoresistive pressure sensor

Author

Samitier, Josep ; Puig-Vidal, Manel ; Bota, Sebastian A. ; Rubio, Carles ; Siskos, Stilianos K. ; Laopoulos, Theordore

Author_Institution

Fac. de Fisica, Barcelona Univ., Spain

Volume

47

Issue

3

fYear

1998

fDate

6/1/1998 12:00:00 AM

Firstpage

708

Lastpage

710

Abstract

An interfacing circuit for piezoresistive pressure sensors based on CMOS current conveyors is presented. The main advantages of the proposed interfacing circuit include the use of a single piezoresistor, the capability of offset compensation, and a versatile current-mode configuration, with current output and current or voltage input. Experimental tests confirm linear relation of output voltage versus piezoresistance variation

Keywords

CMOS analogue integrated circuits; current conveyors; current-mode circuits; error compensation; multiport networks; piezoresistive devices; pressure sensors; CMOS current conveyors; current input; current output; current-mode interface circuit; linear relation; offset compensation; piezoresistance variation; piezoresistive pressure sensor; single piezoresistor; three-port analog building block; versatile current-mode configuration; voltage input; Biosensors; Bridge circuits; CMOS technology; Immune system; Laboratories; Piezoresistance; Resistors; Sensor phenomena and characterization; Silicon; Voltage;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.744332

Filename

744332