Digital slope analog to digital converter device and signal conversion method

Abstract

A digital slope analog to digital converter device includes a capacitor array circuit, a switching circuitry, comparator circuits, encoder circuitries, and a control logic circuit. The capacitor array circuit generates a first signal according to an input signal and switching signals. The switching circuitry generates the switching signals according to an enable signal and a first valid signal in the valid signals. Each of the comparator circuits compares the first signal with a predetermined voltage, in order to generate a corresponding one of the valid signals. Each of the encoder circuitries receives the switching signals according to a corresponding one of the valid signals, in order to generate a corresponding one of sets of first digital codes. The control logic circuit performs a statistics calculation according to the sets of first digital codes, in order to generate a second digital code.

Description

BACKGROUND OF THE INVENTION1. Field of the Invention[0001]The present disclosure relates to an analog to digital converter. More particularly, the present disclosure relates to an analog to digital converter that utilizes multiple comparators and a signal conversion method thereof.2. Description of Related Art[0002]An analog to digital converter has been widely utilized in various electronic devices, in order to generate a digital signal for subsequent signal processing. In practical applications, there is trade-off between a performance (e.g., resolution, low noise, bandwidth, etc.) of the analog to digital converter and power consumption. However, the present circuit architecture of the analog to digital converter is insufficient to meet restrict requirements of high performance and low power consumption.SUMMARY OF THE INVENTION[0003]In some embodiments, a digital slope analog to digital converter device includes a capacitor array circuit, a switching circuitry, a plurality of com...

AI Technical Summary

Benefits of technology

The present patent describes a device and method for converting signals. The device includes a capacitor array circuit, a switching circuitry, comparator circuits, encoder circuitries, and a control logic circuit. The method involves generating a first signal based on an input signal and switching signals, comparing the first signal with a predetermined voltage to generate a set of valid signals, generating a second digital code based on the valid signals, and performing a statistics calculation on the valid codes to generate a second digital code. The technical effects of the patent are to provide a device and method for accurate and efficient signal conversion without the need for complex and expensive equipment.

Problems solved by technology

However, the present circuit architecture of the analog to digital converter is insufficient to meet restrict requirements of high performance and low power consumption.

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