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Detection circuit of line control circuit of infrared focal plane reading circuit

A technology of infrared focal plane and readout circuit, which is applied in the field of readout circuit, can solve problems such as difficult detection and incomplete circuit, and achieve the effect of saving production cost

Inactive Publication Date: 2013-08-28
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the analog circuit of the infrared focal plane array readout circuit is difficult to detect before the infrared sensitive unit array is produced, because the circuit is incomplete and the output is a random signal

Method used

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  • Detection circuit of line control circuit of infrared focal plane reading circuit
  • Detection circuit of line control circuit of infrared focal plane reading circuit
  • Detection circuit of line control circuit of infrared focal plane reading circuit

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Embodiment Construction

[0016] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0017] figure 1 It is a structural schematic diagram of the detection circuit of the row control circuit of the infrared focal plane readout circuit according to an embodiment of the present invention.

[0018] Such as figure 1 As shown, in one embodiment of the present invention, the detection circuit of the row control circuit of an infrared focal plane readout circuit includes a unit gain operational amplifier 10 . The unity gain operational amplifier 10 includes an inverting input terminal inn, a first non-inverting input terminal inp, a second non-inverting input terminal inp_ts and an output terminal, wherein the inverting input terminal inn is connected to the output terminal to form a negative feedback.

[0019] In the embodiment of the present invention, the first in-phase input terminal inp is used as the input port of the signal from the inf...

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PUM

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Abstract

The invention discloses a detection circuit of a line control circuit of an infrared focal plane reading circuit. The detection circuit comprises a unit gain operation amplifier and a testing circuit. The unit gain operation amplifier comprises an inverted input end, a first in-phase input end, a second in-phase input end and an output end, wherein the first in-phase input end is connected with a detecting circuit of the infrared focal plane reading circuit. The testing circuit is connected with the second in-phase input end of the unit gain operation amplifier. The detection circuit can detect the reading circuit before sensitive picture elements are made through infrared focal plane arrays, unqualified circuits are screened out, and manufacturing cost of the infrared focal plane arrays is saved. When normal work is carried out after the sensitive picture elements are made, the fact that the second in-phase input end does not affect normal work of the unit gain operation amplifier can be guaranteed, and performance attenuation cannot be caused.

Description

technical field [0001] The invention relates to a readout circuit of an infrared focal plane array detector, in particular to a detection circuit of a row control circuit of an infrared focal plane readout circuit. Background technique [0002] At present, infrared imaging systems are being increasingly widely used in military, space technology, medicine and national economy related fields. The infrared focal plane array component is the core optoelectronic device for obtaining infrared image signals in infrared imaging technology. The infrared focal plane array assembly consists of an infrared detector and an infrared focal plane readout circuit (ROIC: readout integrated circuits). With the continuous expansion of the scale of infrared focal plane array components, the infrared focal plane readout circuit, which is an important part of it, needs to meet higher working performance. [0003] The ROIC circuit is a highly integrated circuit that integrates various functions o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J5/02
Inventor 吕坚阙隆成杜一颖周云
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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