PURPOSE: To provide the current voltage conversion circuit in which the effect of a temperature characteristic of a base-emitter voltage of an amplifier transistor (TR) is eliminated and an output voltage at no input is set to an optional reference voltage.

CONSTITUTION: One of two parallel current feedback amplifiers 11-1, 11-2 is used for a dummy amplifier, an output terminal of the dummy parallel current feedback amplifier 11-2 is connected to an inverting terminal of an operational amplifier 12, a control voltage V1 is applied to a noninverting terminal of the operational amplifier 12 and the output of the operational amplifier 12 is connected to a terminal 2 to which an emitter of an amplifier transistor (TR) of the two parallel current feedback amplifiers 11-1, 11-2 is connected and feedback is applied so that an output voltage of the parallel current feedback amplifier 11-1 is the control voltage V1.