Title :
A dynamic element matching circuit for multi-bit delta-sigma modulators
Author :
Katoh, R. ; Kobayashi, S.-y. ; Waho, T.
Author_Institution :
Sophia University
Abstract :
A 30k-gate dynamic element matching circuit for bandpass ΔΣmodulators with a 4-bit quantizer is designed hy using 0.35-pm CMOS technology. Secondorder bandpass mismatch-shaping algorithm improves the signal-to-noise ratio by ~30dB (~5 hit). The core circuit area and the estimated operation speed were 1.44 mm2 and 20 MHz, respectively.
Keywords :
CMOS technology; Circuit simulation; Delta modulation; Digital-analog conversion; Feedback; Frequency; Sampling methods; Signal to noise ratio; Timing; Tree data structures;
Conference_Titel :
Design Automation Conference, 2004. Proceedings of the ASP-DAC 2004. Asia and South Pacific
Conference_Location :
Yohohama, Japan
Print_ISBN :
0-7803-8175-0
DOI :
10.1109/ASPDAC.2004.1337653
