An infrared detection device including a matrix of bolometric detectors electrically connected to a reading circuit. Each of the detectors includes at least two electrically conductive thermal insulation structures insulated from one another and fitted in contact at one of their ends with an active zone consisting of a bolometric material. One of the structures is electrically connected at its other end to the reading circuit by a cold electrical connection that is kept at a substantially constant potential. The other structure is electrically connected at its other end to the reading circuit by a hot electrical connection, which is connected in series with a switch integrated into the reading circuit. At least two adjacent bolometric detectors are connected by a common electrical connection to the substantially constant potential of the reading circuit.