99-dB High-Performance Delta-Sigma Modulator for 20-kHz Bandwidth

Author

Choi, Youngkil ; Roh, Hyungdong ; Nam, Hyunseok ; Roh, Jeongjin

Author_Institution

Hanyang Univ., Ansan

fYear

2008

fDate

23-25 Jan. 2008

Firstpage

75

Lastpage

78

Abstract

In this paper, we present a fourth-order single-bit delta-sigma modulator with wide dynamic range. This modulator is suitable for distributed sensor and audio codec applications. This chip was fabricated in a 0.18- mum one-poly, four-metal CMOS technology, and occupies 1.22-mm² active area. The circuit is clocked at 3.2 MHz and the overall power consumption is 5.6 mW from a 3.0 V power supply. Experimental results show a maximum dynamic range of 99 dB within a 20- kHz bandwidth.

Keywords

CMOS integrated circuits; clocks; delta-sigma modulation; low-power electronics; audio codec; bandwidth 20 kHz; chip fabrication; clock circuit; distributed sensor; four-metal CMOS technology; fourth-order single-bit delta-sigma modulator; frequency 3.2 MHz; power 5.6 mW; power consumption; size 0.18 mum; voltage 3.0 V; Bandwidth; CMOS technology; Circuits; Clocks; Codecs; Delta modulation; Dynamic range; Energy consumption; Modulation coding; Power supplies; analogue-to-digital converter; delta-sigma modulator; switched-capacitor circuit;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic Design, Test and Applications, 2008. DELTA 2008. 4th IEEE International Symposium on

Conference_Location

Hong Kong

Print_ISBN

978-0-7695-3110-6

Type

conf

DOI

10.1109/DELTA.2008.54

Filename

4459513