A matching circuit, comprising: a primary winding configured to generate a magnetic field based on an analog input signal; a first secondary winding (L2A) inductively coupled to the primary winding; a second secondary winding (L2B) inductively coupled to the primary winding; a first path coupled to a first output pin of the first secondary winding (L2A), the first path comprising a first switch connected to the first output pin of the first secondary winding (L2A) and switchable to be open, connect to ground or connect to a first load impedance; a second path coupled to a second output pin of the first secondary winding (L2A), the second path comprising a second switch connected to the second output pin of the first secondary winding (L2A) and switchable to be open, connect to ground or connect to a second load impedance; a third path coupled to a first output pin of the second secondary winding (L2B), the third path comprising a third switch connected to the first output pin of the second secondary winding (L2B) and switchable to be open, connect to ground or connect to a third load impedance; and a fourth path coupled to a second output pin of the second secondary winding (L2B), the fourth path comprising a fourth switch connected to the second output pin of the second secondary winding (L2B) and switchable to be open, connect to ground or connect to a fourth load impedance, wherein the third path comprises a first adjustable capacitor (C3B) coupled between the first output pin of the second secondary winding (L2B) and the third switch, wherein a second adjustable capacitor (C2B) is coupled to the third path between the first adjustable capacitor (C3B) and the third switch and is coupled to the fourth path between the second output pin of the second secondary winding (L2B) and the fourth switch, wherein the first path comprises a third adjustable capacitor (C3A) coupled between the first output pin of the first secondary winding (L2A) and the first switch, and wherein a fourth adjustable capacitor (C2A) is coupled to the first path between the third adjustable capacitor (C3A) and the first switch and is coupled to the second path between the second output pin of the first secondary winding (L2A) and the second switch. a primary winding configured to generate a magnetic field based on an analog input signal; a first secondary winding (L2A) inductively coupled to the primary winding; a second secondary winding (L2B) inductively coupled to the primary winding; a first path coupled to a first output pin of the first secondary winding (L2A), the first path comprising a first switch connected to the first output pin of the first secondary winding (L2A) and switchable to be open, connect to ground or connect to a first load impedance; a second path coupled to a second output pin of the first secondary winding (L2A), the second path comprising a second switch connected to the second output pin of the first secondary winding (L2A) and switchable to be open, connect to ground or connect to a second load impedance; a third path coupled to a first output pin of the second secondary winding (L2B), the third path comprising a third switch connected to the first output pin of the second secondary winding (L2B) and switchable to be open, connect to ground or connect to a third load impedance; and a fourth path coupled to a second output pin of the second secondary winding (L2B), the fourth path comprising a fourth switch connected to the second output pin of the second secondary winding (L2B) and switchable to be open, connect to ground or connect to a fourth load impedance, wherein the third path comprises a first adjustable capacitor (C3B) coupled between the first output pin of the second secondary winding (L2B) and the third switch, wherein a second adjustable capacitor (C2B) is coupled to the third path between the first adjustable capacitor (C3B) and the third switch and is coupled to the fourth path between the second output pin of the second secondary winding (L2B) and the fourth switch, wherein the first path comprises a third adjustable capacitor (C3A) coupled between the first output pin of the first secondary winding (L2A) and the first switch, and wherein a fourth adjustable capacitor (C2A) is coupled to the first path between the third adjustable capacitor (C3A) and the first switch and is coupled to the second path between the second output pin of the first secondary winding (L2A) and the second switch.