Filter device

A filter device comprising:

• a plurality of series arm resonators provided at a filter chip;
• a plurality of parallel arm resonators provided at the filter chip;
• and
• a plurality of inductors electrically connected in series with a first group of the plurality of parallel arm resonators;
• wherein
• a first inductor of the plurality of inductors that has a highest inductance of all of the plurality of inductors is electrically connected in series with a first parallel arm resonator of the plurality of parallel arm resonators that has a highest anti-resonant frequency of all of the plurality of parallel arm resonators;
• one end of the first parallel arm resonator and one end of a second parallel arm resonator included in a second group of the plurality of parallel arm resonators are electrically connected to a same wiring line included in a plurality of wiring lines separated by the series arm resonators on a line electrically connecting an input terminal and an output terminal of the filter chip;
• another end of the first parallel arm resonator is electrically connected to a first ground terminal of the filter chip;
• and
• another end of the second parallel arm resonator is electrically connected to a second ground terminal of the filter chip which is different from the first ground terminal.