Liquid discharge apparatus and print head drive circuit

A liquid discharge apparatus comprising:

• a print head that discharges a liquid in response to a drive signal;
• and
• a print head drive circuit that outputs the drive signal, wherein
• the print head drive circuit includes
• a modulation circuit that outputs a modulation signal obtained by modulating a basic drive signal that serves as a base of the drive signal,
• an amplification circuit that outputs an amplification modulation signal obtained by amplifying the modulation signal with a first transistor and a second transistor, and
• a demodulation circuit that demodulates the amplification modulation signal and outputs the demodulated signal as the drive signal,
• the first transistor includes
• a first conductor that functions as a source electrode,
• a second conductor that functions as a gate electrode,
• a third conductor that functions as a drain electrode,
• a first layer that includes a first semiconductor region of a first conductive type having a trench and a second semiconductor region of a second conductive type provided in the trench, and
• a second layer that includes a third semiconductor region of the first conductive type, a fourth semiconductor region of the second conductive type provided in the third semiconductor region, and a fifth semiconductor region of the first conductive type provided in the fourth semiconductor region,
• the first layer is disposed above the third conductor,
• the second layer is disposed above the first layer,
• the first conductor is disposed above the fourth semiconductor region, and
• the second conductor is disposed above the fifth semiconductor region.