Touch-sensitive input device, having: a carrier a touch-sensitive input part, such as touchpad or a touchscreen, which is supported on the carrier by means of first spring means so as to be elastically restoring and capable of an oscillating movement along a deflection direction; an absorber body, which is supported so as to be movable at least along the deflection direction on the carrier by means of second spring means so as to be elastically restoring and capable of an oscillating movement; at least one actuator, acting between the input part and the absorber body, to bring about the deflection of the input part and of the absorber body from an associated rest position with at least one effective direction, which has an effective direction component parallel to the deflection direction, in order to bring about, after the deflection, a dampened, free oscillation of the input part to produce haptic feedback along the deflection direction and to bring about, after the deflection, a dampened, free oscillation of the absorber body in the direction opposite to the movement of the input part; and a control electronic system for generating an electrical control signal (P(t)) for the at least one actuator, characterized in that, after the input part has been touched and optionally if an actuating force exceeding a specified extent is detected by an optional force sensor on the input part, the electrical control signal (P(t)) is generated with a periodically repeating acceleration pulse (P A), wherein the acceleration pulse (P A) brings about at least a first deflection of the input part and the absorber body and a period duration determining the periodic sequence of the acceleration pulse (P A) is selected to be greater than the greater one of a first decay duration (t T0) of the dampened oscillation of the absorber body and a second decay duration (t E0) of the dampened oscillation of the input part, wherein the first decay duration (t E0) and the second decay duration (t T0) are each determined by the time at which the oscillation maximum amplitude (S T2, S E2) of one of the deflections following the first deflection has dropped in terms of absolute value by 20 dB with respect to the oscillation maximum amplitude (S T1, S E1) of the first deflection or, for the event that the first deflection is not followed by an overshooting of the rest position, is determined by the time at which the amplitude of the first deflection after reaching the oscillation maximum amplitude (S T1, S E1) has dropped by 40 dB with respect to the oscillation maximum amplitude (S T1, S E1). a carrier a touch-sensitive input part, such as touchpad or a touchscreen, which is supported on the carrier by means of first spring means so as to be elastically restoring and capable of an oscillating movement along a deflection direction; an absorber body, which is supported so as to be movable at least along the deflection direction on the carrier by means of second spring means so as to be elastically restoring and capable of an oscillating movement; at least one actuator, acting between the input part and the absorber body, to bring about the deflection of the input part and of the absorber body from an associated rest position with at least one effective direction, which has an effective direction component parallel to the deflection direction, in order to bring about, after the deflection, a dampened, free oscillation of the input part to produce haptic feedback along the deflection direction and to bring about, after the deflection, a dampened, free oscillation of the absorber body in the direction opposite to the movement of the input part; and a control electronic system for generating an electrical control signal (P(t)) for the at least one actuator, characterized in that, after the input part has been touched and optionally if an actuating force exceeding a specified extent is detected by an optional force sensor on the input part, the electrical control signal (P(t)) is generated with a periodically repeating acceleration pulse (P A), wherein the acceleration pulse (P A) brings about at least a first deflection of the input part and the absorber body and a period duration determining the periodic sequence of the acceleration pulse (P A) is selected to be greater than the greater one of a first decay duration (t T0) of the dampened oscillation of the absorber body and a second decay duration (t E0) of the dampened oscillation of the input part, wherein the first decay duration (t E0) and the second decay duration (t T0) are each determined by the time at which the oscillation maximum amplitude (S T2, S E2) of one of the deflections following the first deflection has dropped in terms of absolute value by 20 dB with respect to the oscillation maximum amplitude (S T1, S E1) of the first deflection or, for the event that the first deflection is not followed by an overshooting of the rest position, is determined by the time at which the amplitude of the first deflection after reaching the oscillation maximum amplitude (S T1, S E1) has dropped by 40 dB with respect to the oscillation maximum amplitude (S T1, S E1).