Patent ID: 6882186

Claim:
A driving circuit comprising: a first current mirror circuit which outputs a plurality of output currents each of which corresponds to a reference current, said first current mirror circuit comprising: a reference current input terminal to which said reference current is supplied; a power supply terminal to which power is supplied; a first circuit provided between said reference current input terminal and said power supply terminal, to determine said plurality of output currents; a common power supply line which extends from said power supply terminal; a plurality of output terminals; a plurality of second circuits provided between said common power supply line and said plurality of output terminals, to output a part of said plurality of output currents determined by said first circuit through said plurality of output terminals; and a third circuit provided at a next state of said plurality of second circuits as said final stage of said first current mirror circuit, to output said output current determined by said first circuit; and a second current mirror circuit which converts a polarity of an output current outputted from a final stage of said first current mirror circuit and outputs the converted output current, said second current mirror circuit converting said polarity of said output current outputted from said third circuit and outputs said converted output current through a reference current output terminal, wherein: said first circuit, said second circuits and said third circuit included in said first current mirror circuit comprise PNP transistors, and said second current mirror circuit comprises NPN transistors, at least one of said first current mirror circuit and said second current mirror circuit includes a base current compensating circuit, and said power supply terminal is pulled out from a center of said common power supply line.