Frequency characteristic analysis and design of high speed current-steering CMOS digital-to-analog converter

Author

Zhu, Zhangming ; Yang, Yintang

Author_Institution

Inst. of Microelectron., Xidian Univ., China

Volume

2

fYear

2004

fDate

18-21 Oct. 2004

Firstpage

1519

Abstract

Based on the analysis for mismatch error and output impedance of high speed digital-to-analog converter, the high level SFDR model of DAC is implemented with mismatch error and output impedance by Matlab. A novel current source circuit is presented in this paper. A 14-bit, 100MS/s DAC is implemented in TSMC 0.35μm CMOS technology. The DAC can deliver up to 20mA full-scale current into a 50Ω load and occupies 3.8mm² die area. Spurious-free dynamic range (SFDR) is 71dB at a 100MHz clock rate and a 20MHz output frequency.

Keywords

CMOS integrated circuits; constant current sources; digital-analogue conversion; high-speed integrated circuits; 0.35 micron; 20 MHz; 20 mA; 50 ohm; Matlab implementation; current source circuit; current-steering CMOS digital-to-analog converter; frequency characteristic analysis; high speed CMOS digital-to-analog converter; mismatch error; output impedance; spurious-free dynamic range; CMOS technology; Circuits; Clocks; Digital-analog conversion; Dynamic range; Error analysis; Frequency conversion; Impedance; Mathematical model; Semiconductor device modeling;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State and Integrated Circuits Technology, 2004. Proceedings. 7th International Conference on

Print_ISBN

0-7803-8511-X

Type

conf

DOI

10.1109/ICSICT.2004.1436901

Filename

1436901