A 10-bit nanoampere level current-steering Digital to Analog Converter

Author

Qiang Huang ; Jun Feng

Author_Institution

Inst. of RF & OE-ICs, Southeast Univ., Nanjing, China

fYear

2013

fDate

4-6 Sept. 2013

Firstpage

261

Lastpage

265

Abstract

A 10-bit Digital-to-Analog Converter (DAC) in Charted 0.35um technology is presented. The design realizes a 10-bit, 25MS/s sampling rate and 10nA of the least significant bit output current DAC in the current steering structure. The whole DAC consists of synchronous unit circuit, decoding circuit, switch array, voltage-current transition circuit, current source array, output current mirror and so on. The area of the chip is 1.15μm×1.28μm. The power supply is 3.3V, the static power consumption is 4.8mW, the integral nonlinearity (INL) is 1LSB, the differential nonlinearity (DNL) is 1LSB. The test shows that the chip has a good performance on linearity when linearly increasing data is input.

Keywords

constant current sources; current mirrors; digital-analogue conversion; nanoelectronics; power consumption; switching circuits; DNL; LSB; current 10 nA; current mirror; current source array; current steering structure; decoding circuit; differential nonlinearity; digital-to-analog converter; integral nonlinearity; least significant bit; nanoampere level current steering DAC; power 4.8 mW; size 0.35 mum; size 1.15 mum; size 1.28 mum; static power consumption; switch array; synchronous unit circuit; voltage 3.3 V; voltage-current transition circuit; Arrays; CMOS integrated circuits; Decoding; Microdisplays; Mirrors; Registers; Switching circuits; CMOS; Digital-to-Analog Converter; current steering; low power consumption; tiny current;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Information Technologies (ISCIT), 2013 13th International Symposium on

Conference_Location

Surat Thani

Print_ISBN

978-1-4673-5578-0

Type

conf

DOI

10.1109/ISCIT.2013.6645861

Filename

6645861