A 3 V 10 b 100 MS/s digital-to-analog converter for cable modem applications

Author

Park, Jin ; Lee, Seung-Chul ; Yoon, Jin-Sik ; Lee, Seung-Hoon

Author_Institution

Hyundai Electron. Ind. Co. Ltd., Seoul, South Korea

Volume

46

Issue

4

fYear

2000

fDate

11/1/2000 12:00:00 AM

Firstpage

1043

Lastpage

1047

Abstract

This paper describes a 10 b 100 MS/s CMOS digital-to-analog converter (DAC) for cable modem applications. Differential switches with the proposed deglitching circuit and the cascode current sources, separated from the unit decoded current cell matrix improve the dynamic performance. The proposed and conventional prototype DACs are fabricated in a 0.35-μm CMOS process. The measured differential and integral nonlinearities of the proposed DAC shows ±0.17 LSB and ±0.43 LSB at a 10 b level, respectively. At 100 MS/s, the spurious-free dynamic range is 66 dB for a 100 kHz input signal and 52 dB for a 10 MHz input signal

Keywords

CMOS digital integrated circuits; constant current sources; digital-analogue conversion; modems; semiconductor switches; 0.35 mum; 10 MHz; 100 kHz; 3 V; CMOS DAC; CMOS process; LSB; cable modem applications; cascode current sources; decoded current cell matrix; deglitching circuit; differential nonlinearity; differential switches; digital-to-analog converter; dynamic performance; input signal; integral nonlinearity; spurious-free dynamic rang; Circuits; Clocks; Communication cables; Decoding; Digital-analog conversion; Industrial electronics; Linearity; Modems; Switches; Thermal degradation;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.920459

Filename

920459