公开(公告)号：US08704695B2

公开(公告)日：2014-04-22

申请号：US13682907

申请日：2012-11-21

Applicant: Sitronix Technology Corp.

Inventor： Ming-Huang Liu ,  Wei-Yang Ou

IPC: H03M1/50

CPC classification number: H03M1/34 ,  H03M1/14 ,  H03M1/365 ,  H03M1/60

Abstract: The present invention provides an analog-to-digital converter, which comprises an integration circuit, a threshold signal generating circuit, a main comparison circuit, a sub comparison circuit, a counter, and a decoder. The integration circuit integrates an input signal and produces an integration signal. The threshold signal generating circuit generates a main threshold signal and a plurality of sub threshold signals. The main comparison circuit produces a plurality of main comparison signals according the integration signal and the main threshold signal. The sub comparison circuit produces a plurality of sub comparison signals according to the integration signal and the plurality of sub threshold signals. The counter counts the plurality of main comparison signals and produces a first counting signal. The decoder decodes the plurality of sub comparison signals and produces a second count signal. The first count signal and the second count signal are used for producing a digital signal.

Abstract translation: 本发明提供一种模数转换器，其包括积分电路，阈值信号发生电路，主比较电路，子比较电路，计数器和解码器。 积分电路集成输入信号并产生积分信号。 阈值信号发生电路产生主阈值信号和多个子阈值信号。 主比较电路根据积分信号和主阈值信号产生多个主比较信号。 子比较电路根据积分信号和多个子阈值信号产生多个子比较信号。 计数器对多个主比较信号进行计数，并产生第一计数信号。 解码器解码多个子比较信号并产生第二计数信号。 第一计数信号和第二计数信号用于产生数字信号。