Title :
Experimental circuit with current mode ΣΔ modulators with switched transconductance
Author :
Suszynski, Robert
Author_Institution :
Fac. of Electron., Tech. Univ. of Koszalin, Poland
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 VLSISPICE COMPASS DESIGN program and finally designed by using UNCLE program and then manufactured via Eurochip service center in 0.7 μm ES2 digital process to verify proposed concept. Three different ΣΔ structures: first-order, second-order and multistage third-order were measured and results are shown in the paper
Keywords :
current-mode circuits; sigma-delta modulation; switched networks; 0.7 micron; ES2 digital process; UNCLE; VLSISPICE COMPASS DESIGN; analogue-digital converter; computer simulation; current-mode sigma-delta modulator; parasitic capacitance; switched transconductance amplifier; Circuit testing; Clocks; Current measurement; Delta modulation; Feedback loop; Integrated circuit measurements; Pulse modulation; Semiconductor device measurement; Switching circuits; Transconductance;
Conference_Titel :
Electronics, Circuits and Systems, 2000. ICECS 2000. The 7th IEEE International Conference on
Conference_Location :
Jounieh
Print_ISBN :
0-7803-6542-9
DOI :
10.1109/ICECS.2000.911502
