Patent ID: 8375789

Claim:
A microelectromechanical gyroscope comprising: a microstructure including a fixed structure, a driving mass, movable with respect to the fixed structure with a first degree of freedom according to a driving axis, and a first sensing mass mechanically coupled to the driving mass so as to be drawn in motion according to the driving axis and movable with respect to the driving mass with a second degree of freedom according to a first sensing axis in response to rotations of the microstructure; and a sensing device forming a microelectromechanical loop with the microstructure, the microelectromechanical loop being configured to keep the driving mass in oscillation according to the driving axis at a driving frequency; wherein the sensing device comprises: a discrete-time sensing interface coupled to the microstructure and configured to sense a discrete-time position of the driving mass with respect to the driving axis, the sensing interface including a discrete-time charge amplifier configured to sense the discrete-time position of the driving mass and provide a discrete-time detection signal that indicates the discrete-time position of the driving mass; and a controller configured to control an oscillation amplitude of the microelectromechanical loop based on the discrete-time detection signal that indicates the discrete-time position of the driving mass.