An infrared detector including an array of detection bolometers each having a bolometric membrane suspended above a substrate, and associated with each bolometer: a detection branch, including the bolometer and a circuit performing a biasing according to a voltage set point, a compensation branch, including a compensation bolometer thermalized to the substrate, a circuit performing a biasing according to a voltage set point, an integrator for generating a voltage by integrating a difference between the currents flowing through said branches, a circuit generating a quantity depending on substrate temperature, including: a bolometer thermalized to the substrate, and a circuit for biasing the bolometer, and a circuit for generating the voltage set points according to said quantity. When the array is exposed to a uniform reference scene, the average of the differences between currents flowing through said branches is within the integrator dynamic range for a substrate temperature range from −30° C.-90° C.