Background noise and electronic design
Background noise and measurements - Measurement and design applications
Article REF: R311 V1
Background noise and electronic design
Background noise and measurements - Measurement and design applications

Authors : Matteo VALENZA, Fabien PASCAL, Alain HOFFMANN

Publication date: December 10, 2006 | Lire en français

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4. Background noise and electronic design

4.1 Low-noise design

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4.1.1 Basic principle

Knowledge of the noise floor in components and circuits is essential when developing electronic measurement systems requiring low noise.

The main problem is as follows: given a known signal from a transducer, its noise, impedance and characteristic response, how can we optimize the amplifier design so as not to degrade the signal-to-noise ratio too much?

The "matching" of the amplifier...

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