Patent ID: 9562936
Date: 2017-02-07
CPC Classifications: G01J,G01R

Claim:
1. An infrared detection device comprising: at least one first bolometer configured to detect at least a part of infrared radiation received by the infrared detection device; and a reading and compensation circuit configured to operate on a first electrical signal outputted by the first bolometer, the reading and compensation circuit including: wherein the first reading circuit includes at least one first operational amplifier configured to carry out an integration of a first current that passes through the first bolometer, corresponding to the first electrical signal, and from which is subtracted a second current, corresponding to the second electrical signal, that passes through the second bolometer, and wherein the second reading circuit includes a plurality of switches configured to electrically connect, in a first configuration, a first input of the first operational amplifier to an electrical connection that connects the first bolometer to the second bolometer, and to electrically connect, in a second configuration, a second input of the first operational amplifier to one of the terminals of the first bolometer via one of the switches located in a pixel of the infrared detection device, the pixel including the first bolometer, and/or to one of the terminals of the second bolometer, and such that the first operational amplifier is mounted as an integrator in the first configuration and as a voltage follower in the second configuration.