Design of a digital-to-analog converter with a working frequency of 1Gs / s and a resolution of 12bit

Subject Areas : Electronics Engineering

Ghader  Yosefi ¹ (Faculty member of Electrical-Electronic Engineering Department, Islamic Azad University, Mahabad Branch)
Shilan  Neda ² (Master student of mechatronics engineering, Islamic Azad University, Tabriz Branch)
Masoud  Dosti ³ (Assistant Professor, Department of Electrical and Electronic Engineering, Tehran University of Science and Research Branch)

Received: 2021-04-27 Accepted : 2021-04-27 Published : 2019-01-21

Keywords:

Abstract :

This paper presents the design and implementation of a digital-to-analog converter with a frequency of one billion samples per second and a resolution of 12 bits in the standard process of 0.35um CMOS technology. This included designing new circuits that converted the converter, with good INL results (0.7LSB for 8 bits and 0.8LSB for 12 bits). Also, SFDR with Fsig = 125Meg and Fs = 500Meg is about 73dB and for Fsig = 125Meg and Fs = 1G is about 60dB by calculating the total capacitance of the layout. Total power consumption 180mw and works with 3.3v and 2v power supplies. According to the designed layout, the occupied surface of the chip is 0.313mm2 and four metals and two polyes are used and the simulation results are done by Hspice software.