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Ultra low noise, current to voltage converter with offset compensation independent of the source impedance

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IIT-98-089A.pdf (268.9Kb)
Fecha
01/06/1998
Autor
Ciofi, Carmine
Festa, G.
Giannetti, Romano
Neri, Bruno
Estado
info:eu-repo/semantics/publishedVersion
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Resumen
 
 
A new version of a low-noise, high gain transimpedance amplifier, operating in the frequency range from DC to KHz, is described. The new version of the instrument, thanks to a completely differential architecture, is capable to give the same stability without controlling the temperature of the input stage, as in the previous one. A more sophisticated circuitry for offset nulling allows to null contemporaneously both voltage and current input offset sources. A further improvement of the performance, as far as low frequency noise is concerned, has been obtained. In fact, for instance, the input equivalent current noise is 5.2 fA//spl radic/Hz between 10 mHz and 2 Hz.
 
URI
http://hdl.handle.net/11531/40681
Ultra low noise, current to voltage converter with offset compensation independent of the source impedance
Tipo de Actividad
Capítulos en libros
Materias/ categorías / ODS
Instituto de Investigación Tecnológica (IIT)
Palabras Clave

Voltage, Instruments, Impedance, Low-frequency noise, Current measurement, Temperature control, Differential amplifiers, Telecommunications, Low-noise amplifiers, Frequency
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