公开(公告)号：US20140197974A1

公开(公告)日：2014-07-17

申请号：US14142597

申请日：2013-12-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haiquan YUAN ,  Peng GAO

IPC: H03M1/68

CPC classification number: H03M1/685 ,  H03M1/747

Abstract: A digital to analog converter and a method for controlling a current source array in a digital to analog converter relate to the field of electronics technologies, and are used to reduce a system error. The digital to analog converter includes: a decoding module, a switch array, and a current source array, where the decoding module is configured to generate a 2n−1-bit first temperature code by using high n bits of an input 2n-bit binary digital signal, generate a 2n−1-bit second temperature code by using low n bits of the 2n-bit binary digital signal, and control, by using the 2n−1-bit first temperature code and the 2n−1-bit second temperature code, a working sequence of 2n×2n−1 unit switches.

Abstract translation: 数模转换器和用于控制数模转换器中的电流源阵列的方法涉及电子技术领域，并且用于减少系统错误。 数模转换器包括：解码模块，开关阵列和电流源阵列，其中解码模块被配置为通过使用输入的2n位二进制数的高n位来产生2n-1位第一温度码 数字信号，通过使用2n位二进制数字信号的低n位产生2n-1位第二温度码，并且通过使用2n-1位第一温度码和2n-1位第二温度 代码，2n×2n-1单位开关的工作顺序。