A novel ultra sensitive method for voltage noise measurements

Author

Crupi, Felice ; Giusi, Gino ; Ciofi, Carmine ; Pace, Calogero

Author_Institution

DEIS, Calabria Univ., Arcavacata di Rende

Volume

2

fYear

2005

fDate

16-19 May 2005

Firstpage

1190

Lastpage

1193

Abstract

Ultra low noise measurements often require the application of signal processing and correction techniques to go beyond the noise performances of front-end amplifiers. In this paper, we propose a new method for the measurement of a voltage noise source that allows, at least in principle, the complete elimination of the noise introduced by the amplifiers used for the measurements. This is obtained by resorting to the conventional cross correlation technique for the elimination of the contribution of the EIVN of the amplifiers and by using a new three step measurement procedure that exploits different amplifier configuration measurements in order to subtract the contribution of the EICN of the amplifiers

Keywords

amplifiers; circuit noise; correlation methods; electric noise measurement; signal processing; spectral analysis; amplifier configuration measurements; amplifier noise; cross correlation technique; front-end amplifiers; signal processing; spectral analysis; ultra low noise measurement; voltage noise measurement; voltage noise source; Background noise; Impedance; Low voltage; Low-noise amplifiers; Noise measurement; Performance evaluation; Power amplifiers; Signal processing; Spectral analysis; Voltage measurement; Amplifier noise; cross-correlation tecniques; noise measurement; spectral analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 2005. IMTC 2005. Proceedings of the IEEE

Conference_Location

Ottawa, Ont.

Print_ISBN

0-7803-8879-8

Type

conf

DOI

10.1109/IMTC.2005.1604334

Filename

1604334