Title :
Low-voltage S/sup 2/I and S/sup 3/I cells for sigma-delta signal processing
Author :
P. Simek;V. Musil
Author_Institution :
Fac. of Electr. Eng. & Comput. Sci., Tech. Univ. of Brno, Czech Republic
Abstract :
The paper presents novel implementations of switched-current cells suitable to operate with 1.5 V supply voltage. The cells based on S/sup 2/I and S/sup 3/I principles are evaluated for the low-voltage operation and maximum achievable dynamic range. A second order sigma-delta modulator is simulated using a low-voltage cell. Simulated output spectrum analyses are presented.
Keywords :
"Delta-sigma modulation","Signal processing","Threshold voltage","Dynamic range","Bellows","MOSFETs","Sampling methods","Capacitance","Energy consumption","Diodes"
Conference_Titel :
Circuits and Systems, 1998. ISCAS ´98. Proceedings of the 1998 IEEE International Symposium on
Print_ISBN :
0-7803-4455-3
DOI :
10.1109/ISCAS.1998.704186
