Volume 37, Issue 6 pp. 781-792
Research Article

Cross-correlation-based trans-impedance amplifier for current noise measurements

Gino Giusi

Corresponding Author

Gino Giusi

DEIS, University of Calabria, Via Pietro Bucci 42C, 87030 Arcavacata di Rende (CS), Italy

DEIS, University of Calabria, Via Pietro Bucci 42C, 87030 Arcavacata di Rende (CS), ItalySearch for more papers by this author
Calogero Pace

Calogero Pace

DEIS, University of Calabria, Via Pietro Bucci 42C, 87030 Arcavacata di Rende (CS), Italy

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Felice Crupi

Felice Crupi

DEIS, University of Calabria, Via Pietro Bucci 42C, 87030 Arcavacata di Rende (CS), Italy

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First published: 25 July 2008
Citations: 16

Abstract

This work proposes a cross-correlation-based trans-impedance amplifier for current noise measurements in the low-frequency range. The proposed solution is compared with the classical cross-correlation trans-impedance amplifier showing a lower background noise. Furthermore, a three-step measurement method, based on the new trans-impedance amplifier, is proposed to cancel the residual background noise. SPICE simulations and noise measurements performed on prototype circuits demonstrate the validity of the proposed approach. Copyright © 2008 John Wiley & Sons, Ltd.

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