Patent ID: 7541862

Claim:
A reference voltage generating circuit comprising: a current generating section that generates a first current having a positive temperature coefficient; a voltage generating section that generates a voltage having a negative temperature coefficient; a synthesis section that generates a voltage which is the sum of a voltage having a positive temperature coefficient and developed across both terminals of a resistor by causing a current having a positive temperature coefficient to flow through said resistor, and said voltage having a negative temperature coefficient; and a compensation current generating section that generates a second current having a positive temperature coefficient; a current corresponding to the sum of said first and second currents being caused to flow through said resistor; said synthesis section generating a voltage which is a sum of a terminal voltage of said resistor by the sum current of said first and second currents and said voltage having a negative temperature coefficient; said synthesis section outputting the voltage generated as a reference voltage, wherein said compensation current generating section outputs, as said second current, a current proportional to a differential voltage corresponding to subtraction of said voltage having the negative temperature coefficient from said reference voltage output from said synthesis section.