A liquid ejecting apparatus comprising: a nozzle row (L1, L2) that includes a plurality of nozzles which includes a first nozzle for ejecting a liquid by driving a first piezoelectric element, a second nozzle for ejecting the liquid by driving a second piezoelectric element, and a third nozzle for ejecting the liquid by driving a third piezoelectric element; a driving circuit configured to generate a plurality of voltage waveforms which include a first voltage waveform (Adp) for driving any of the first, second or third piezoelectric elements so as to eject the liquid from the first, second or third nozzle respectively included in the nozzle row and a second voltage waveform (Cdp) for driving any of the first, second or third piezoelectric elements to such an extent that the liquid is not ejected from the first, second or third nozzle respectively included in the nozzle row; a switching IC that includes a plurality of switching circuits which include a first switching circuit configured to switch whether or not to supply one of the plurality of voltage waveforms to the first piezoelectric element, a second switching circuit configured to switch whether or not to supply one of the plurality of voltage waveforms to the second piezoelectric element, and a third switching circuit configured to switch whether or not to supply one of the plurality of voltage waveforms to the third piezoelectric element; a protective substrate that is provided with the switching IC and is disposed so as to electrically connect the first switching circuit and the first piezoelectric element, to transmit one of the plurality of voltage waveforms, and to protect the first piezoelectric element, wherein the first switching circuit is configured to switch so that the first voltage waveform is supplied to the first piezoelectric element corresponding to the first nozzle which ejects the liquid, the second switching circuit is configured to switch so that the second voltage waveform is supplied to the second piezoelectric element corresponding to the second nozzle which does not eject the liquid, and the third switching circuit is configured to switch so that none of the plurality of voltage waveforms is supplied to the third piezoelectric element corresponding to the third nozzle which does not eject the liquid, and the switching IC has a shape which includes a short side and a long side intersected with the short side, and a length of the long side is equal to or larger than 10 times a length of the short side. a nozzle row (L1, L2) that includes a plurality of nozzles which includes a first nozzle for ejecting a liquid by driving a first piezoelectric element, a second nozzle for ejecting the liquid by driving a second piezoelectric element, and a third nozzle for ejecting the liquid by driving a third piezoelectric element; a driving circuit configured to generate a plurality of voltage waveforms which include a first voltage waveform (Adp) for driving any of the first, second or third piezoelectric elements so as to eject the liquid from the first, second or third nozzle respectively included in the nozzle row and a second voltage waveform (Cdp) for driving any of the first, second or third piezoelectric elements to such an extent that the liquid is not ejected from the first, second or third nozzle respectively included in the nozzle row; a switching IC that includes a plurality of switching circuits which include a first switching circuit configured to switch whether or not to supply one of the plurality of voltage waveforms to the first piezoelectric element, a second switching circuit configured to switch whether or not to supply one of the plurality of voltage waveforms to the second piezoelectric element, and a third switching circuit configured to switch whether or not to supply one of the plurality of voltage waveforms to the third piezoelectric element; a protective substrate that is provided with the switching IC and is disposed so as to electrically connect the first switching circuit and the first piezoelectric element, to transmit one of the plurality of voltage waveforms, and to protect the first piezoelectric element, wherein the first switching circuit is configured to switch so that the first voltage waveform is supplied to the first piezoelectric element corresponding to the first nozzle which ejects the liquid, the second switching circuit is configured to switch so that the second voltage waveform is supplied to the second piezoelectric element corresponding to the second nozzle which does not eject the liquid, and the third switching circuit is configured to switch so that none of the plurality of voltage waveforms is supplied to the third piezoelectric element corresponding to the third nozzle which does not eject the liquid, and the switching IC has a shape which includes a short side and a long side intersected with the short side, and a length of the long side is equal to or larger than 10 times a length of the short side.