A complete single supply dual 18-bit audio DAC

Author

Hisano, Shinichi ; Brokaw, A. Paul ; Granoff, Neal R.

Author_Institution

Analog Devices, Wilmington, MA, USA

Volume

37

Issue

3

fYear

1991

fDate

8/1/1991 12:00:00 AM

Firstpage

697

Lastpage

701

Abstract

A complete 18-bit dual voltage-out audio DAC (digital-to-analog converter) was developed on a 2 μm BiCMOS process with laser-trimmable SiCr thin film resistors. A combination of segmented elements and R-2R networks was chosen to achieve high performance while maintaining low power consumption and a small die size. The device operates from a single 5 V supply with 50 mW power dissipation. It achieves 0.004% (-88 dB) THD (total harmonic distortion)+noise, 97.5 dB signal-to-noise ratio, and 115 dB channel separation. The die size is 2.65 mm×3.43 mm (104 mil ×135mil)

Keywords

BIMOS integrated circuits; audio equipment; digital-analogue conversion; 18 bit; 2 micron; 5 V; 50 mW; BiCMOS process; R-2R networks; SiCr thin film resistors; channel separation; digital-to-analog converter; dual voltage-out audio DAC; low power consumption; power dissipation; segmented elements; signal-to-noise ratio; single supply; small die size; total harmonic distortion; BiCMOS integrated circuits; CMOS technology; Capacitors; Laser noise; Pulse width modulation; Resistors; Shift registers; Streaming media; Thin film devices; Voltage;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.85588

Filename

85588