Measuring and experimental results of current mode ΣΔ modulators with switched transconductance

Author

Suszynski, Robert

Author_Institution

Fac. of Electron., Tech. Univ. of Koszalin, Koszalin, Poland

Volume

3

fYear

1999

fDate

1999

Firstpage

1515

Abstract

This paper presents measuring and experimental results of A/D converters with current mode ΣΔ modulators. The ΣΔ modulator structures are composed of current mode blocks with transconductance amplifiers and their parasitic input capacitances. ΣΔ modulator structures were designed and simulated by using the VLSISPICE COMPASS DESIGN program and finally designed by using the UNCLE program and then manufactured via Eurochip service center in a 0.7 μm ES2 digital process to verify the proposed concept. Three different ΣΔ structures: first-order, second-order and multistage third-order were measured and results are given in the paper

Keywords

CMOS integrated circuits; circuit CAD; circuit simulation; current-mode circuits; integrated circuit design; modulators; sigma-delta modulation; 0.7 micron; A/D converters; ES2 digital process; Eurochip service center; UNCLE program; VLSISPICE COMPASS DESIGN program; current mode ΣΔ modulators; first-order type; multistage third-order typr; parasitic input capacitances; second-order type; sigma-delta modulator ADC; switched transconductance; transconductance amplifiers; Circuit testing; Clocks; Current measurement; Delta modulation; Digital modulation; Feedback loop; Integrated circuit measurements; Manufacturing processes; Pulse modulation; Transconductance;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 1999. Proceedings of ICECS '99. The 6th IEEE International Conference on

Conference_Location

Pafos

Print_ISBN

0-7803-5682-9

Type

conf

DOI

10.1109/ICECS.1999.814458

Filename

814458