A new method for the temperature-compensation of fundamental-mode orthogonal fl uxgates that does not require additional hardware has been proposed and implemented. The method is based on the employme nt of one of the two fluxgate transfer characteristics and the ph ase of the corresponding output signal. The measurement accordin g to the proposed method can be done during a single, unipolar eye le of the flu xgate excitation. This doubles the me asurement update rate compared to conventional methods. The proposed method reduces temperaturedrift errors by an order of magnitude. The fluxgate prototype has demonstrated a 20-fold (down to 100 ppm/°C) reduction of the temperature-drift errors.