A reference current circuit has an input configured to receive an input current, a first transistor, a second transistor, and an output configured to provide a reference current. The input is directly connected to a control input of the second transistor and a first terminal of the first transistor, and is connected via a first resistor to a control input of the first transistor. The output is connected to a first terminal of the second transistor. A reference node is connected via a second resistor to the control input of the first transistor, directly to a second terminal of the first transistor and via a third resistor to a second terminal of the second transistor.