Embodiments of the invention described herein provide a magnetic sensor interface capable of adjusting signal conditioning dynamically using a speed signal of a target (104) such that the true positive and negative peaks of the input signal are maintained for the given target (104) across its entire speed range (0-Max rpm), therefore increasing the signal to noise ratio at low speeds and avoiding clipping or distortion at high speeds. In one aspect, a method comprises receiving an alternating differential voltage signal from a sensor (102). The differential voltage signal has an amplitude that changes relative to a change in speed of a target (104). The alternating differential voltage signal is converted to an attenuated single-ended voltage signal that can be dynamically scaled. The attenuated single-ended voltage signal can be scaled by multiplying the attenuated single-ended voltage signal by a scaling factor. The scaling factor is selected relative to the speed signal and is selected relative to a signal-to-noise ratio of the scaled attenuated single-ended voltage signal.
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