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Cross‐correlation‐based trans‐impedance amplifier for current noise measurements
Author(s) -
Giusi Gino,
Pace Calogero,
Crupi Felice
Publication year - 2009
Publication title -
international journal of circuit theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 52
eISSN - 1097-007X
pISSN - 0098-9886
DOI - 10.1002/cta.517
Subject(s) - noise (video) , low noise amplifier , electrical impedance , amplifier , electronic engineering , spice , y factor , physics , electrical engineering , computer science , engineering , cmos , artificial intelligence , image (mathematics)
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.