Liquid Ejecting Apparatus And Capacitive Load Drive Circuit

A liquid ejecting apparatus comprising:

• a capacitive load that is displaced when supplied with a drive signal;
• an ejection section that ejects liquid in accordance with displacement of the capacitive load;
• and
• a capacitive load drive circuit that outputs the drive signal,
• the capacitive load drive circuit including:
• a modulation circuit that outputs a modulated signal obtained by modulating a base drive signal which is a basis of the drive signal;
• an amplification circuit that includes a first transistor and a second transistor and outputs an amplified modulated signal by driving of the first transistor and the second transistor, the first transistor being driven in response to a first gate drive signal corresponding to the modulated signal, the second transistor being driven in response to a second gate drive signal corresponding to the modulated signal;
• and
• a demodulation circuit that outputs the drive signal obtained by demodulating the amplified modulated signal,
• at least one of the first transistor and the second transistor including:
• a first layer including a first nitride semiconductor;
• and
• a second layer including a second nitride semiconductor having a band gap larger than a band gap of the first nitride semiconductor, wherein the second layer is disposed above the first layer.