PURPOSE: To obtain a driving device by which the indication characteristic of a pointer can be indicated as an intended characteristic by providing a sensor voltage conversion means, a voltage addition means and the like.

CONSTITUTION: A sensor voltage conversion means 1 is constituted of differential amplifiers 10, 11-1 to 11-3, of resistances 12-1 to 12-3, 13-1 to 13-3 which adjust the gain of every differential amplifier 11, of constant voltage diodes 14 and of resistances 15. In addition, a voltage addition means 2 is constituted in such a way that identical resistors R are connected in a star state. In the conversion means 1, voltages which are generated by sensors are converted so as to be output. In the addition means 2, a plurality of converted voltages converted by the conversion means 1 are added so as to be output a driving voltages of a coil on one side. In this manner, sensor voltages which are output from the sensors are converted into voltages having various characteristics and the converted voltages are added so as to be output as the driving voltages. As a result, when the conversion of every sensor voltage is changed, the indication characteristic of a painter can be indicated as an intended characteristic.