Ultrasonic probe and ultrasonic diagnosis device provided with same

An ultrasonic probe, comprising:

• a transducer;
• a transmitting circuit including a transducer driving unit and a current source, the transducer driving unit being configured with a current mirror of a low voltage transistor and a high voltage transistor, the high voltage transistor being connected to the transducer, the current source supplying an operating current to the low voltage transistor of the transducer driving unit;
• a correcting unit including a transmission circuit driving unit replica having the same configuration as the transducer driving unit, a bias unit that constantly maintains a sum of electric currents flowing to a low voltage transistor and a high voltage transistor of the transmitting circuit driving unit replica, and an observing unit that copies and extracts the electric current flowing to the low voltage transistor of the transmitting circuit driving unit replica;
• and
• a distributing unit that transfers a signal to a current source of the transmitting circuit so that the same current value as the current value extracted by the observing unit flows.