Abstract: A transducer interface circuit (10) for use with a capacitive sensor (20). The interface circuit (10), provided on application specific IC, includes numerous trims and adjustments that permit it to operate with a differential, balanced-pair sensors (20A) or a singled-ended sensor (2013). In particular, the circuit (10) provides a capacitive adjustment section (100) and a capacitive trans-impedance amplifier section (200) that are configured with capacitor adjustment controls (110) and gain adjustment controls (210) that, along with other controls, are provided as control registers. The capacitive trans-impedance amplifier section (300) periodically reverses the voltages across the sensor (20), and the capacitive adjustment section (200), after blanking a feedback capacitance (CF) that is used to integrate excess charge caused by a difference in capacitance. A low pass filter section 300 provides bandwidth adjustment without requiring any external components.