A low power, 114 dB linear delta-sigma D/A converter for data acquisition applications

Author

Mellati, Afshin ; Fowers, Paul ; Leung, Ka

Author_Institution

Data Div., Burr-Brown Corp., Tucson, AZ, USA

fYear

1999

fDate

1999

Firstpage

43

Lastpage

46

Abstract

The delta-sigma modulation technique has been widely used in digital-to-analog converter for digital audio signal acquisition because of its relaxed reconstruction filtering requirements and its high tolerance of component mismatch. This paper discusses a very low power, highly linear D/A converter for industry data acquisition applications. A single chip device integrates a second-order digital delta-sigma modulator, a single-ended switched-capacitor reconstruction filter with chopper stabilized amplifier, and a second-order continuous-time filter, fabricated in a 0.6 μm double-poly double-metal CMOS process

Keywords

CMOS integrated circuits; continuous time filters; data acquisition; delta-sigma modulation; low-power electronics; operational amplifiers; switched capacitor filters; 0.6 micron; D/A converter; chopper stabilized op amp; data acquisition applications; delta-sigma modulation technique; double-poly double-metal CMOS process; linear delta-sigma DAC; low power DAC; second-order continuous-time filter; second-order digital delta-sigma modulator; single chip device; single-ended SC reconstruction filter; Capacitors; Data acquisition; Delta modulation; Delta-sigma modulation; Digital filters; Filtering; Linearity; Noise figure; Quantization; Signal resolution;

fLanguage

English

Publisher

ieee

Conference_Titel

Mixed-Signal Design, 1999. SSMSD '99. 1999 Southwest Symposium on

Conference_Location

Tucson, AZ

Print_ISBN

0-7803-5510-5

Type

conf

DOI

10.1109/SSMSD.1999.768588

Filename

768588