Patent ID: 8459109

Claim:
A reading circuit for a multi-axis gyroscope provided with a microelectromechanical structure configured to rotate with respective angular velocities about respective first and second reference axes, and including first and second pairs of detection elements that are sensitive along first and second detection directions, respectively, the first and second directions being different from one another, and including first and second pairs of electrodes that are configured to generate respective detection quantities including capacitive variations due to displacements of said pairs of detection elements with respect to associated pairs of fixed electrodes as a function of projections of said angular velocities in said first and second detection directions, the reading circuit comprising: a combination stage having inputs electrically connected to the pairs of fixed electrodes to receive at input said capacitive variations and is configured to combine electrically together the detection quantities generated by the first and second detection elements, so as to take into account a non-zero angle of inclination of said first and second detection directions with respect to said first and second reference axes, and is configured to implement combinations of the capacitive variations generated by said detection elements sensitive to said detection directions different from one another; and an output stage configured to provide electrical output signals based on combined detection quantities received from the combination stage, each signal being correlated to a respective one of said angular velocities; and wherein said combination stage has an input configured to receive phase signals and includes a set of switch elements configured to be driven by said phase signals to short-circuit in pairs said fixed electrodes and to implement said combinations of said capacitive variations.