公开(公告)号：US10090853B1

公开(公告)日：2018-10-02

申请号：US15867734

申请日：2018-01-11

Applicant: Faraday Technology Corp.

Inventor： Shu-Dong Wu ,  Feng Xu

IPC: H03M1/38 ,  H03M1/14 ,  H03M1/46 ,  H03M1/40

Abstract: An analog-to-digital conversion device is provided for converting an input signal pair to generate an output signal. The analog-to-digital conversion device includes switch groups, capacitors, a comparator, and a controller. The switch groups receive the input signal pair and reference voltages, and selects to output one of the input signal pair and the reference voltages according to a control signal to generate selection voltages respectively. The capacitors receive the selection voltages respectively and generate a first comparison voltage and a second comparison voltage. The comparator compares the first comparison voltage and the second comparison voltage to generate a comparison result signal. The controller sets conversion times for converting bits of the output signal according to the comparison result signal, wherein at least two of the conversion times are different.