Reading circuit of uncooled infrared focal plane array
A focal plane array and uncooled infrared technology, which is applied in the field of uncooled infrared focal plane array, can solve the problems of affecting the readout results and temperature rise, and achieve the effect of improving uniformity and reliability, reducing volume and cost
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[0025] The specific structure of the readout circuit of the uncooled infrared focal plane array of the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
[0026] Such as figure 1 As shown, in an embodiment of the present invention, an uncooled infrared focal plane array readout circuit includes a current bias circuit 10, a substrate temperature compensation circuit 20, and an integration circuit 30.
[0027] The current bias circuit 10 includes a reference bias current source structure I BIAS . The reference bias current source structure I BIAS Connect to the channel-level thermal short-circuit microbolometer through the current mirror pair R b The first end and pixel level thermally isolated microbolometer R s The first end, in this way, refer to the bias current source structure I BIAS The same current is generated through the current mirror pair to the channel level thermal short circuit Microbolometer R b And pixe...
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