Assembly line analog-to-digital conversion circuit

An analog-to-digital conversion circuit and analog-to-digital converter technology, applied in the direction of analog/digital conversion, code conversion, electrical components, etc., can solve the problems of excessive circuit hardware and time overhead, so as to reduce hardware overhead, reduce gain error, The effect of simplifying the circuit structure

Pending Publication Date: 2021-08-17
UNIVERSITY OF MACAU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of this application is to provide a pipelined analog-to-digital conversion circuit to solve the problem of excessive circuit hardware and time overhead in the prior art.

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  • Assembly line analog-to-digital conversion circuit
  • Assembly line analog-to-digital conversion circuit
  • Assembly line analog-to-digital conversion circuit

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Embodiment Construction

[0035] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them.

[0036] The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art withou...

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Abstract

The invention provides a pipeline analog-to-digital conversion circuit, and relates to the field of pipeline circuits. The circuit comprises N stages of analog-to-digital converters, N-1 margin amplifiers and N-1 digital filters, and N is an integer greater than or equal to 2; the margin output end of the i-level analog-to-digital converter is electrically connected with the first input end of a margin amplifier, the output end of the margin amplifier is electrically connected with the analog input end of the (i+1)-level analog-to-digital converter, and i is any positive integer smaller than N; wherein the first-stage analog-to-digital converter is an analog-to-digital converter with a noise shaping function, and the digital output end of each stage of analog-to-digital converter after the first-stage analog-to-digital converter is electrically connected with a digital filter. Compared with the prior art, the problem of overlarge circuit hardware and time overhead in the prior art is avoided.

Description

technical field [0001] The present application relates to the technical field of pipeline circuits, in particular, to a pipeline analog-to-digital conversion circuit. Background technique [0002] With the development of deep submicron technology of Complementary Metal-Oxide-Semiconductor (CMOS) and the reduction of power supply voltage, the successive approximation analog-to-digital converter (SARADC) has been obtained due to its high efficiency and simple structure. Wide range of applications. At the same time, the advantages of high speed and high precision of the pipeline (Pipeline) structure make the pipeline ADC have great potential in realizing high speed, high precision and low power consumption. [0003] However, limited by the voltage amplification accuracy of the headroom amplifier in the pipeline analog-to-digital converter, it is difficult for this structure to simultaneously achieve high-speed and high-precision performance. How to suppress the gain error of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03M1/34
CPCH03M1/34
Inventor 陈知行张红帅诸嫣马许愿
Owner UNIVERSITY OF MACAU
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