Current-Steering Digital-to-Analog Converter With a High-PSRR Current Switch

Author

Akita, Ippei ; Itakura, Tetsuro ; Shiraishi, Kei

Author_Institution

Toshiba Corp., Kawasaki, Japan

Volume

58

Issue

11

fYear

2011

Firstpage

724

Lastpage

728

Abstract

A power-supply noise (PSN) reduction method for a fully differential current-steering digital-to-analog converter is presented. The method employs a proposed auxiliary path in each current switch and makes PSN-induced currents common-mode ones at the positive and negative outputs, resulting in the differential output with PSN suppressed. The proposed switch also has the capability to cancel out glitch. The simulation results show that the influence due to PSN is effectively reduced and the spurious-free dynamic range is improved.

Keywords

digital-analogue conversion; noise; power supplies to apparatus; PSN reduction method; PSN-induced currents; current-steering digital-to-analog converter; differential output; high-PSRR current switch; negative outputs; positive outputs; power-supply noise reduction method; spurious-free dynamic range; Capacitors; Digital circuits; Digital-analog conversion; Integrated circuits; Power supplies; Substrates; Transistors; Current steering; digital-to-analog converter (DAC); glitch; power-supply rejection; substrate noise;

fLanguage

English

Journal_Title

Circuits and Systems II: Express Briefs, IEEE Transactions on

Publisher

ieee

ISSN

1549-7747

Type

jour

DOI

10.1109/TCSII.2011.2168013

Filename

6078405