A simple 'bandgap'-type magnetoamplifier

Abstract:

A simple and very sensitive amplifier circuit for the signal amplification of a lateral magnetotransistor is presented. This circuit was originally used as a bandgap voltage reference source, so its attainable temperature stability is good. Both collectors of the lateral magnetotransistor 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) around room temperature has been obtained experimentally.

Año de publicación:

1996

Keywords:

• Lateral magnetotransistors
• Magnetoamplifier
• Bandgap

Fuente:

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scopus