Noise and thermal stability of vibrating micro-gyrometers preamplifiers

R. Levy (1) , A. Dupret (1) , H. Mathias (1) , J.-P. Gilles (1) , F. Parrain (1) , B. Eisenbeis (2) , S. Megherbi (2)

1 ONERA - The French Aerospace Lab [Châtillon]
2 IEF - Institut d'électronique fondamentale

The preamplifier is a critical component of gyrometer's electronics. Indeed the resolution of the sensor is limited by its signal to noise ratio, and the gyrometer's thermal stability is limited by its gain drift. In this paper, five different kinds of preamplifiers are presented and compared. Finally, the design of an integrated preamplifier is shown in order to increase the gain stability while reducing its noise and size.

Mots clés: Modeling; simulation and CAD tools for MEMS

Domaines: Autre [cs.OH]; Architectures Matérielles [cs.AR]

R. Levy, A. Dupret, H. Mathias, J.-P. Gilles, F. Parrain, et al.. Noise and thermal stability of vibrating micro-gyrometers preamplifiers. DTIP 2007, Apr 2007, Stresa, lago Maggiore, Italy. pp.142-146. ⟨hal-00257677⟩