题目/Title：一种16位1GSPS电流舵型 DAC的设计
                        Design of a 16-bit 1GSPS Current-Steering D-to-A Converter

作者/Author：杨扬,李福乐,张春
                        Yang Yang,Fule Li,Chun Zhang

期刊/Journal：微电子学 Microelectronics

年份/Issue Date：2014.Jun.

卷（期）及页码/Volume（No.）&pages：Vol.44, No.3

摘要/Abstract：
本文介绍了一种基于UMC 0.18µm CMOS工艺的16位1GSPS的电流舵型D/A转换器。该DAC采用7+4+5分段结构，1.8V/3V双电源供电，满摆幅输出电流20mA。采用四开关结构、限幅开关驱动电路、两个Cascode管的单位电流源电路以及两层结构的逻辑译码器，实现了优异的性能指标。在1GHz采样率，101.07MHz输入信号下，无杂散动态范围（SFDR）可达到78.06dB。
A 16-bit 1GSPS current-steering digital-to-analog converter(DAC) is proposed. The DAC employed a 7+4+5 segmented architecture. The full-scale current output was 20mA with 1.8V/3V dual power supply. A special Quad Switch circuits, voltage-limited switch driver circuits, current source with two cascade nmos, logic decoder were designed to achieve excellent specification. The SFDR is higher than 78.06dB at 1GSPS and 101.07MHz signal frequency.