Amplifier circuit

An amplifier circuit comprising:

• an input circuit that is configured to generate a differential current including a first current and a second current on a basis of an input signal;
• a first loop filter including a first former-stage integration circuit, a first inverter circuit, and a first latter-stage integration circuit, the first former-stage integration circuit configured to perform an integral action on a basis of the first current and a current corresponding to a first output signal, the first inverter circuit configured to invert an output signal of the first former-stage integration circuit, and the first latter-stage integration circuit configured to generate a first signal by performing an integral action on a basis of an output signal of the first inverter circuit and the first output signal;
• a first modulation circuit that is configured to generate a first modulated signal by modulating the first signal with use of a predetermined signal;
• a first output circuit that is configured to generate the first output signal on a basis of the first modulated signal;
• a second loop filter including a second former-stage integration circuit, a second inverter circuit, and a second latter-stage integration circuit, the second former-stage integration circuit configured to perform an integral action on a basis of the second current and a current corresponding to a second output signal, the second inverter circuit configured to invert an output signal of the second former-stage integration circuit, and the second latter-stage integration circuit configured to generate a second signal by performing an integral action on a basis of an output signal of the second inverter circuit and the second output signal;
• a second modulation circuit that is configured to generate a second modulated signal by modulating the second signal with use of the predetermined signal;
• and
• a second output circuit that is configured to generate the second output signal on a basis of the second modulated signal.