A SIMPLE BANDGAP-TYPE MAGNETOAMPLIFIER

Authors
RODRIGUEZ F TRUJILLO H HERNANDEZ W
Citation
F. Rodriguez et al., A SIMPLE BANDGAP-TYPE MAGNETOAMPLIFIER, Sensors and actuators. A, Physical, 55(2-3), 1996, pp. 133-137
Citations number
8
Categorie Soggetti
Engineering, Eletrical & Electronic","Instument & Instrumentation
Journal title
Sensors and actuators. A, Physical → ACNP
ISSN journal
09244247
Volume
55
Issue
2-3
Year of publication
1996
Pages
133 - 137
Database
ISI
SICI code
0924-4247(1996)55:2-3<133:ASBM>2.0.ZU;2-Q
Abstract
A simple and very sensitive amplifier circuit for the signal amplifica tion of a lateral magnetotransistor is presented. This circuit was ori ginally used as a bandgap voltage reference source, so its attainable temperature stability is good. Both collectors of the lateral magnetot ransistor are forced to be practically equipotential. A sensitivity of 13.30 T-1 with a thermal drift of 30 mV in 40 K (due to the sensor) a round room temperature has been obtained experimentally.