The design of a low-distortion sigma-delta ADC for WLAN standards
2005 (English)In: ISSCS 2005: International Symposium on Signals, Circuits and Systems, Vols 1 and 2, Proceedings, 2005, 151-154 p.Conference paper (Refereed)
A low-distortion sigma-delta analog-to-digital converter (ADC) for Wireless Local Area Network (WLAN) standards is presented. The proposed sigma-delta modulator architecture employs the 4-bit 2(nd) order sigma-delta modulator with swing suppression in a 2-2 modified cascaded configuration, which greatly improves the tonal behavior even at 8X oversampling ratio (OSR). The modulator is designed in 0.18um CMOS process and operates at 1.8V supply voltage. It achieves a dynamic range of 69.1dB and a spurious free dynamic range (SFDR) of 82.2dB for a 10MHz signal bandwidth, and an oversampling ratio of 8.
Place, publisher, year, edition, pages
2005. 151-154 p.
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-42792ISI: 000231532900038ScopusID: 2-s2.0-33746346662ISBN: 0-7803-9029-6OAI: oai:DiVA.org:kth-42792DiVA: diva2:447680
7th International Symposium on Signals, Circuits and Systems (ISSCS 2005) Location: Iasi, ROMANIA Date: JUL 14-15, 2005
QC 201110132011-10-132011-10-122012-10-02Bibliographically approved