Electrical device for interconnecting magnetic head and driving circuit which uses adjusted length wires of opposite polarity to reduce crosstalk and storage apparatus including same

A magnetic head driving device comprising:

• a recording/reproducing head including a write element and a magnetoresistive element;
• a driving circuit for driving the write element and the magnetoresistive element;
• write wires and read wires for connecting the write element and the magnetoresistive element of the recording/reproducing head to the driving circuit, said write wires and read wires being disposed in parallel in at least a portion between the recording/reproducing head and the driving circuit;
• and
• a connection portion for reversing polarity of one of the write wires and read wires with respect to polarity of the other of the write wires and the read wires at a location between the recording/reproducing head and the driving circuit,
• wherein the total length of the read wires that the polarity reverses to the polarity of the write wires is adjusted so that crosstalk electrical current, caused by both the write element and the write wires, flowing into the magnetoresistive element is reduced within an allowable electrical current value of the magnetoresistive element.