INPUT DEVICE AND ELECTRONIC APPARATUS FOR RECEIVING SIGNAL FROM THE INPUT DEVICE

An input device and an electronic apparatus for receiving a signal from the input device are provided. The input device includes a conductive tip configured to receive an electric field transmission signal generated from at least one electrode of the electronic apparatus, a circuit configured to generate an electric field response signal corresponding to the electric field transmission signal, a variable capacitor disposed between the conductive tip and the circuit and configured to vary the electric field response signal according to writing pressure applied to the conductive tip, and a casein which the circuit and the variable capacitor are disposed. The variable capacitor includes a first electrode and a second electrode coupled to the circuit, a conductive variable electrode disposedto face the first electrode, and a dielectric disposed between the first electrode and the conductive variable electrode. The first electrode and the second electrode are fixed to the case.