Patent ID: 8212605

Claim:
A temperature compensation circuit comprising: a bias circuit configured to output a bias current having a current value increasing in proportion to an absolute temperature in a low-temperature region in which a temperature is lower than a predetermined temperature, and having a greater current value than the current value proportional to the absolute temperature in a high-temperature region in which the temperature is equal to or greater than the predetermined temperature; and a transistor having a control terminal supplied with the bias current, the bias circuit comprising: a first current generating circuit configured to generate a first current increasing in proportion to the absolute temperature; a second current generating circuit configured to generate a second current that does not flow in the low-temperature region and flows in the high-temperature region; and a control circuit configured to control the second current and having a connection terminal capable of being connected with an external resistor for adjusting a magnitude of the second current, the bias circuit being configured to generate a third current by adding the first current to the second current, and output the bias current that is the third current or a fourth current depending on the third current.