Differential amplifier circuit

A differential amplifier circuit comprising:

• a first differential amplifier circuit as a first stage;
• a second differential amplifier circuit having a common mode feedback circuit in a second stage;
• and
• a feedback differential circuit configured to multiply a differential signal between a differential output of the first differential amplifier circuit and a differential input of the second differential amplifier circuit by a magnitude of a differential output of the common mode feedback circuit, wherein:
• the differential input of the feedback differential circuit is provided with a feedback path configured to input the differential output of the common mode feedback circuit via a filter circuit formed between a ground,
• the common mode feedback circuit is configured to divide the differential output of the second differential amplifier circuit and includes a voltage dividing resistor for extracting a common mode signal,
• the common mode feedback circuit includes:
• a dividing terminal configured to divide the voltage dividing resistor provided as a common mode signal extraction terminal for extracting the common mode signal;
• a first output terminal provided between the common mode signal extraction terminal and one terminal of the voltage dividing resistor;
• and
• a second output terminal provided between the common mode signal extraction terminal and another terminal of the voltage dividing resistor, and
• the voltage dividing resistor performs as a resistor constituting the filter circuit.