Pipelined DAC architecture using gray coding

Author

Shaber, Mezbah Uddin ; Signell, Svante

Author_Institution

Sch. of Inf. & Commun. Technol., R. Inst. of Technol., Stockholm, Sweden

fYear

2005

fDate

21-22 Nov. 2005

Firstpage

141

Lastpage

144

Abstract

This work describes a new architecture suitable for wideband digital to analog converter for system-on-chip. The architecture use switched capacitor pipelined D/A converter design with selection inversion based on gray coded bits. A 95dB DC-gain fully differential folded cascode gain-boosted OTA has been designed to be used in each pipelined stage. High linearity up to 61 db (SFDR) is achieved for a 5MHz input sign wave at a 50MHz update frequency. This work describes a new architecture suitable for wideband digital to analog converter for system-on-chip.

Keywords

Gray codes; differential amplifiers; digital-analogue conversion; integrated circuit design; logic design; operational amplifiers; switched capacitor networks; system-on-chip; 5 MHz; 50 MHz; 95 dB; digital to analog converter; fully differential amplifier; gray coding; operational transconductance amplifier; pipelined DAC architecture; switched capacitor; system-on-chip; Capacitors; Circuit simulation; Clocks; Communication switching; Communications technology; Digital-analog conversion; Electronic mail; Equations; Voltage; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

NORCHIP Conference, 2005. 23rd

Print_ISBN

1-4244-0064-3

Type

conf

DOI

10.1109/NORCHP.2005.1597009

Filename

1597009