Abstract: A linear voltage-current converter circuit having a simplified circuit structure and operable over a wide voltage range is disclosed. The circuit comprises a first transistor having a drain connected to a power voltage through a first load element, a second and a third transistor having drains connected to the power voltage through a second load element, means for supplying gates of the first and second transistor with voltage signal, means responsive to a voltage difference at drains of the first and second transistors for controlling a gate voltage of the third transistor so as to reduce the voltage difference to zero, an output transistor, and means for supplying a gate of the output transistor with the same voltage as the gate voltage of the third transistor.