Driving circuit and liquid ejection apparatus

A driving circuit generating a driving signal for driving an ejection section which ejects liquid, the driving circuit comprising:

• a modulator configured to generate a modulated signal by performing pulse modulation on a signal specifying a waveform of the driving signal;
• an amplifier configured to generate an amplified signal by amplifying the modulated signal;
• and
• a smoothing section configured to generate the driving signal by smoothing the amplified signal, wherein
• the amplifier includes
• first and second transistors coupled to each other in series between a voltage line to which a voltage which is higher than a ground voltage is supplied and a grounding conductor to which the ground voltage is supplied, and
• a third transistor having a drain electrode coupled to a gate electrode of the second transistor and a source electrode coupled to the grounding conductor, and
• the first and second transistors are exclusively set to an On state in accordance with the modulated signal, and the amplified signal is output from a node which couples the first and second transistors to each other.