Analog-to-digital conversion method, device and circuit and computer readable storage medium

Abstract

The invention discloses an analog-to-digital conversion method which is applied to an analog-to-digital conversion circuit, the analog-to-digital conversion circuit comprises a digital-to-analog converter, a first comparator and a second comparator, and the method comprises the following steps: obtaining a first output value of the first comparator and a second output value of the second comparator at the end of each clock cycle; determining whether conversion of the analog signal is completed or not according to the first output value and the second output value; and if the conversion is completed, obtaining a first digital code value recorded in the digital-to-analog converter, and determining a digital signal corresponding to the analog signal according to the first digital code value.The invention also discloses an analog-to-digital conversion device, a circuit and a computer readable storage medium. The two comparators are adopted in the analog-to-digital conversion circuit for analog-to-digital conversion, so that the structure of the analog-to-digital conversion circuit is simplified, and the power consumption of a circuit chip is greatly reduced.

Description

technical field [0001] The present invention relates to the technical field of signal conversion, in particular to an analog-to-digital conversion method, device, circuit and computer-readable storage medium. Background technique [0002] The analog-to-digital conversion device is a bridge connecting the physical world and the digital signal processing system. In the digital signal processing system, an analog-to-digital conversion device must be used to convert analog signals in the physical world, such as voltage, current, temperature, etc., into digital signals. . At present, analog-to-digital conversion devices have many mature structures, such as sigma-detla structure, successive approximation structure, Flash structure, pipeline structure and so on. [0003] The sigma-delta structure can meet the requirements of conversion accuracy, but it has many modules and circuit devices, resulting in large chip area and power consumption. At the same time, its over-sampling work...

AI Technical Summary

Problems solved by technology

[0003] The sigma-delta structure can meet the requirements of conversion accuracy, but it has many modules and circuit devices, resulting in large chip area and power consumption. At the same time, its over-sampling working principle limits the conversion rate; It has advantages in comprehensive performance such as area, but it also has a more complex circuit structure; Flash structure and pipeline structure have high conversion rates, but require a large number of comparators, the circuit is complex, and the area and power consumption of the chip are relatively large.

[0004] To sum up, the current analog-to-digital conversion device has the technical problems of complex circuit structure and high power consumption

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