A temperature sensor circuit which includes: an adjustment circuit which generates
a first divided voltage obtained by dividing a reference voltage; a current generation
circuit which has a transistor element and generates a current corresponding to
a gate voltage of the transistor element, the first divided voltage being supplied
to a gate terminal of the transistor element; a voltage generation circuit which
includes a diode element to which the current is supplied, an analog voltage being
generated between both ends of the diode element; and an analog/digital (A/D) conversion
circuit which compares a second divided voltage obtained by dividing the reference
voltage with the analog voltage and converts the analog voltage into a digital value.
