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Analog-digital converter based on memristor

A technology of analog-to-digital converters and memristors, applied in the direction of analog-to-digital converters, can solve the problems of complex structures and classifications, low conversion rates, etc., and achieve low power consumption, small chip area occupation, and simple structure.

Active Publication Date: 2013-09-18
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the higher the resolution of the ADC, the longer the conversion time required and the lower the conversion rate, so the resolution and conversion rate of the ADC are always mutually restricted.
Therefore, while developing a high-resolution ADC, it is necessary to take into account the high speed, and to develop a high-speed ADC while taking into account the high resolution. On this basis, power consumption, volume, portability, multi-function, and compatibility with computers and communication networks must also be considered. issues such as characteristics and special requirements in the application field, which also makes the structure and classification of ADC intricate

Method used

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  • Analog-digital converter based on memristor
  • Analog-digital converter based on memristor
  • Analog-digital converter based on memristor

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Embodiment Construction

[0021] The present invention aims to propose a new type of memristor-based analog-to-digital converter with high precision, low power consumption, and small chip area. Memristor (MEMRISTOR) is the fourth type of Basic passive components. The resistance value of the memristor can be programmed at the maximum resistance R MAX and minimum resistance R MIN any resistance value between; in the present invention, voltage pulses are used to program the resistance value of the memristor, and the resistance value of the memristor will gradually change with the number of pulses; in order to realize the gradual decline of the resistance value of the memristor, the present invention adopts A positive voltage pulse is applied to the top electrode of the memristor to program the resistance value of the memristor, so that the resistance value of the memristor can gradually decrease in a step-like manner by controlling the pulse amplitude, frequency, duty cycle and number of pulses.

[0022...

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Abstract

The invention relates to the field of a semiconductor integrated circuit, and discloses a novel analog-digital converter based on a memristor, which is high in precision, low in power consumption and small in occupied chip area. The analog-digital converter comprises a reference voltage production circuit, a comparator, a counter which can produce output codons and a reset circuit, wherein the reference voltage production circuit is connected with the antiphase end of the comparator; voltage is input to the in-phase end of the comparator; the output end of the comparator is connected with the counter which can produce the output codans through an OR gate; and the reset circuit is connected with the reference voltage production circuit. The analog-digital converter based on the memristor has the advantages that the precision is high, the power consumption is low, the occupied chip area is small, the structure is simple, the control is easy, and the analog-digital converter is suitable for low power consumption analog-digital conversion.

Description

technical field [0001] The invention relates to the field of semiconductor integrated circuits, in particular to an analog-to-digital converter based on a memristor, which is used for converting analog signals to digital signals. Background technique [0002] With the rapid development of electronic technology and the wide application of computers in automatic detection and automatic control systems, what are processed and transmitted by digital electronic computers are discontinuous digital signals, and most of them encountered in practice are continuously changing analog signals. After the analog quantity is collected and converted into an analog quantity of an electrical signal by a sensor, it needs to be converted into a digital signal by analog-to-digital conversion before it can be input into the digital system for processing and control. Therefore, it is used as an interface circuit for converting analog power into digital output. ——The analog / digital converter is the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03M1/12
Inventor 刘洋董华吴霜毅胡绍刚李竞春于奇
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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