In this work, we propose a new circuit topology for a transimpedance amplifier which allows to obtain an improved trade-off between equivalent input noise and bandwidth with respect to the conventional approach. We report a simple op-amp based circuit implementation of the new transimpedance amplifier together with the results of its noise and bandwidth characterization. The comparison between these measurements with those obtained on a conventional transimpedance amplifier has confirmed that the proposed approach allows to obtain lower background noise and larger bandwidth for the same transimpedance gain.
Improved trade-off between noise and bandwidth in op-amp based transimpedance amplifier
CRUPI, Felice;PACE, Calogero;
2004-01-01
Abstract
In this work, we propose a new circuit topology for a transimpedance amplifier which allows to obtain an improved trade-off between equivalent input noise and bandwidth with respect to the conventional approach. We report a simple op-amp based circuit implementation of the new transimpedance amplifier together with the results of its noise and bandwidth characterization. The comparison between these measurements with those obtained on a conventional transimpedance amplifier has confirmed that the proposed approach allows to obtain lower background noise and larger bandwidth for the same transimpedance gain.File in questo prodotto:
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