Patent ID: 7622906

Claim:
A reference voltage generation circuit, comprising: a current generation circuit which generates current and that includes: a first diode connected in series between a first node and a ground node; a second diode and a third resistor connected in series between a second node and a ground node; and a feedback circuit, connected in series between a power source node and the first node and between a power source node and the second node, and performing control so as to make a potential of the first node equal to a potential of the second node, a current-voltage conversion circuit which converts the current generated by said current generation circuit into voltage to generate reference voltage and includes an input circuit, connected in series between a reference voltage node which generates reference voltage and a power source node, into which the current generated by said current generation circuit is inputted, wherein said current generation circuit generates current which varies in value according to ambient temperature of said current generation circuit, wherein said current-voltage conversion circuit has a first resistor and a second resistor in which the current generated by the said current generation circuit flows, said first resistor being connected in series between the reference voltage node and a third node and said second resistor being connected in series between the third node and a ground node, and wherein one of said first resistor and said second resistor has a positive temperature coefficient and the other has a negative temperature coefficient.