FIELD: physics.
SUBSTANCE: device for detecting electromagnetic radiation, especially infrared radiation, has 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 (12) which are essentially 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 formed for sequential addressing of each of the rows of the array and the row of blind bolometers. The read circuit also includes a source for producing a reference current (Iref) based on an additional blind bolometer (16) 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 (17). Each of the columns of the array has a compensation structure having a blind bolometer (12) connected to a integrator capable of integrating the difference between the current flowing through the active bolometer of the row which is currently being read and a compensation current output by the blind bolometer.
EFFECT: improved device.
11 cl, 7 dwg
