Class D transconductance amplifier

A circuit comprising:

• an input terminal;
• an output terminal;
• a comparator including a first input terminal, a second input terminal, and an output terminal, wherein the first input terminal of the comparator is electrically coupled to the input terminal of the circuit, and the second input terminal of the comparator is electrically coupled to the output terminal of the comparator;
• a first transistor electrically coupled to the output terminal of the comparator;
• a second transistor electrically coupled to the output terminal of the comparator;
• an inductor electrically coupled to the first transistor and the second transistor;
• a first resistor electrically coupled between the inductor and the output terminal of the circuit;
• and
• a differential amplifier including a first input terminal electrically coupled to a first terminal of the first resistor, a second input terminal electrically coupled to a second terminal to the first resistor, and an output terminal coupled to the first input terminal of the comparator to provide a feedback signal to the comparator.