In a filter circuit comprising a plurality of low pass filters (LPFs) that are connected in series, each of the plurality of LPFs comprises a switched-capacitor circuit (SC), and a fully-differential amplifier (AMP) which amplifies a signal output from the SC, and outputs the amplified signal. An AMP of an LPF which inputs a signal output from a 1-bit digital-to-analog converter (DAC) comprises a discrete-time type common-mode feedback circuit, and an AMP of an LPF which outputs a signal output from the filter circuit comprises a continuous-time type common-mode feedback circuit.