Abstract: Disclosed are a sampling circuit and a receiver with which filter characteristics compatible with the reception of wideband signals can be realized with a high degree of freedom in the setting of the filter characteristics. More specifically, a sampling circuit capable of removing adjacent interfering wave signals while keeping in-band deviation small is disclosed. The sampling circuit (100) is equipped with a discrete-time analog processing circuit group (101) wherein multiple discrete-time analog processing circuits are connected in parallel, a synthesizer (102) which synthesizes the output signals from each of the circuit systems and outputs same, and a digital control unit (103) which outputs control signals.

Abstract: A direct sampling circuit and a receiver which carry out discrete time analog processing with a high degree of design freedom and are provided with a filter property which is achievable to comply with the receipt of a broad band signal. A plurality of discrete time analog processing circuits (101) are connected in parallel with each other, a gm value and a capacitance of a capacitor in each circuit system are set independently based on a prescribed condition, and an output signal obtained from each circuit system is synthesized by means of a buffer capacitor (102), so that an equivalently high-dimensional IIR filter can be put into practice.