Input apparatus

1. An input apparatus comprising:

a touch sensor configured to detect a touch input;

a piezoelectric element mounted on the touch sensor;

a load detection unit configured to detect a pressure load on a touch face of the touch sensor based on an output of the piezoelectric element and to determine whether the pressure load satisfies a standard to provide a tactile sensation; and

a piezoelectric element drive unit configured to drive the piezoelectric element, when the load detection unit determines that the pressure load satisfies the standard, such that the tactile sensation is provided to an object pressing the touch face, wherein

the load detection unit resumes detection of the pressure load after a predetermined period from drive of the piezoelectric element by the piezoelectric element drive unit, and

residual electric charge accumulated in the piezoelectric element discharges in the predetermined period.

2. The input apparatus according to claim 1 , further comprising a discharge circuit configured to discharge the residual electric charge accumulated in the piezoelectric element,

wherein the discharge circuit discharges, in the predetermined period, the residual electric charge accumulated in the piezoelectric element.

3. The input apparatus according to claim 1 , wherein the predetermined period is 40 ms or less.