公开(公告)号：KR1020000015455A

公开(公告)日：2000-03-15

申请号：KR1019980035382

申请日：1998-08-29

Applicant: 현대반도체 주식회사

Inventor： 최훈배

IPC: H03M1/12

CPC classification number: H03M1/42 ,  H03M1/0604 ,  H03M2201/6107 ,  H03M2201/65

Abstract: PURPOSE: An analog/digital converter is provided to compensate a digital output signal having an error generated by an error of establishing time. CONSTITUTION: An analog/digital converter comprises a comparison part(1), successive approximation register(2), a internal digital/analog converter(3), a timer(5) and an error correction part(6). The comparison part(1) receives an analog input signal, compares the analog input signal with input signal of the other input terminal and generates a digital signal. The successive approximation register(2) receives the output signal of the comparison part(1), stores gradually digital signals from the most significant bit to the least significant bit, and generates the stored signals as digital output signals. The internal digital/analog converter(3) converts the digital signals stored in the successive approximation register(2) to the analog signals according to a base voltage and applies to the other input terminal of the comparison part(1). The timer(5) controls operations of the successive approximation register(2) and the internal digital/analog converter(3). The error correction part(6) receives remained bits except an output signal of the comparison part(1) and the most significant bit stored in the successive approximation register(2), estimates the generation of an error, and increase or decrease the least significant bit, thereby correcting the errors.

Abstract translation: 目的：提供模拟/数字转换器来补偿具有由建立时间的误差产生的误差的数字输出信号。 构成：模拟/数字转换器包括比较部分（1），逐次逼近寄存器（2），内部数字/模拟转换器（3），定时器（5）和纠错部分（6）。 比较部分（1）接收模拟输入信号，将模拟输入信号与另一输入端的输入信号进行比较，并生成数字信号。 逐次逼近寄存器（2）接收比较部分（1）的输出信号，将来自最高有效位的数字信号逐渐存储到最低有效位，并产生存储的信号作为数字输出信号。 内部数字/模拟转换器（3）根据基极电压将存储在逐次逼近寄存器（2）中的数字信号转换为模拟信号，并将其应用于比较部分（1）的另一输入端。 定时器（5）控制逐次逼近寄存器（2）和内部数字/模拟转换器（3）的操作。 误差校正部分（6）接收除了比较部分（1）的输出信号和存储在逐次逼近寄存器（2）中的最高有效位之外的剩余位，估计误差的产生，并且增加或减小最小有效值 位，从而纠正错误。