Title :
Low-power switched-capacitor integrator for delta-sigma ADCs
Author :
Wang, Tao ; Temes, Gabor C.
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Oregon State Univ., Corvallis, OR, USA
Abstract :
A new low-power switched-capacitor integrator is proposed for high-resolution ΔΣ ADCs. Compared to the conventional switched-capacitor integrator, it achieves much lower power dissipation for the same noise specifications. To verify the effectiveness of the new integrator, and to compare it with the conventional one, a third-order delta-sigma modulator was simulated. A detailed comparison between the conventional SC integrator and the proposed SC integrator is also presented.
Keywords :
analogue-digital conversion; delta-sigma modulation; integrating circuits; modulators; switched capacitor networks; analogue-digital conversion; delta-sigma ADC; low power switched-capacitor integrator; third-order delta-sigma modulator; Capacitors; Circuit noise; Circuit simulation; Noise generators; Phase noise; Power dissipation; Quantization; Sampling methods; Semiconductor device noise; Voltage;
Conference_Titel :
Circuits and Systems (MWSCAS), 2010 53rd IEEE International Midwest Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4244-7771-5
DOI :
10.1109/MWSCAS.2010.5548741
