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Optical detector, component of optical detector, and photoelectric front-end amplifier circuit

A front-end amplifier and amplifying circuit technology, used in power amplifiers, improving amplifiers to reduce temperature/power supply voltage changes, etc., to achieve the effect of improving reliability and reducing volume

Active Publication Date: 2016-12-21
NO 24 RES INST OF CETC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] In view of the above-mentioned shortcoming of prior art, the object of the present invention is to provide a kind of photodetector and component thereof and photoelectric front-end amplifier circuit, be used for solving the problem that existing photoelectric front-end amplifier often can't achieve high gain and high-speed performance at the same time can also ensure that suitable photodetector integration issues

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  • Optical detector, component of optical detector, and photoelectric front-end amplifier circuit
  • Optical detector, component of optical detector, and photoelectric front-end amplifier circuit
  • Optical detector, component of optical detector, and photoelectric front-end amplifier circuit

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Embodiment Construction

[0036] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

[0037] It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic ideas of the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the compo...

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PUM

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Abstract

The invention provides an optical detector, a component of the optical detector, and a photoelectric front-end amplifier circuit, belonging to the technical field of four-quadrant photoelectric detection application. The photoelectric front-end amplifier circuit comprises three-stage structures including a low-noise front-end trans-impedance amplifier, an intermediate-stage voltage amplifier and an output buffer amplifier; and the three-stage circuits are coupled through direct current to form a wideband amplifier. The optical detector, the component of optical detector, and the photoelectric front-end amplifier circuit disclosed by the invention have the benefits that: the circuit structure is compatible with the existing detector process; single integration can be carried out; and the four-quadrant photoelectric detector is small in volume, low in power consumption and cost, and high in reliability.

Description

technical field [0001] The invention relates to the technical field of electronic circuits, in particular to a photodetector and a photoelectric front-end amplifier circuit therein. Background technique [0002] The traditional four-quadrant photodetector assembly, in addition to the four-quadrant detector, the front-end amplifier usually adopts a module / hybrid integration method, which has the disadvantages of large volume, high cost, and low reliability. With the advancement of monolithic technology and circuit technology, it is possible to develop monolithically integrated multi-channel optoelectronic front-end amplifiers, and even the optoelectronic integrated design of fully monolithically integrated detectors and front-end amplifiers has begun to be explored. Research on the circuit design technology of wideband and large dynamic range photoelectric front-end amplifier suitable for monolithic multi-channel monolithic integration has positive and important significance ...

Claims

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Application Information

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IPC IPC(8): H03F1/30H03F3/21
CPCH03F1/30H03F3/21
Inventor 黄文刚谭开洲李荣强黄绍春刘伦才刘林涛黄晓宗
Owner NO 24 RES INST OF CETC
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