A device for detecting electromagnetic radiation, especially infrared radiation, including an array of elementary bolometers which are sensitive to the incident radiation and are referred to as “active” bolometers and an additional row of bolometers which are substantially insensitive to the radiation and are referred to as “blind” bolometers. The active and blind bolometers are formed on a substrate in which a read circuit is produced for sequential addressing of each of the rows of the array and the row of blind bolometers, each of the bolometers in the same row being biased simultaneously. The read circuit includes a source for producing a reference current (Iref) on the basis of an additional blind bolometer which is also formed on the substrate and means of copying the reference current (Iref) to each of the columns of the array consisting of a current mirror.