Title :
Accurate modeling of noise in switched-C ΔΣ analog-to-digital converters
Author :
Hegazi, Emad ; Klemmer, Nikolaus
Author_Institution :
Integrated Circuits Lab., Ain Shams Univ., Cairo, Egypt
Abstract :
An accurate physical model of switched-capacitor ΔΣ analog-to-digital converters (ADCs) noise is presented. Noise artifacts for various ADC blocks are captured using simple equations. Model is verified against measured 0.25-μm high dynamic range ADC test chip for a wireless receiver. Design guidelines based on the proposed model are discussed.
Keywords :
circuit simulation; integrated circuit modelling; integrated circuit noise; radio receivers; sigma-delta modulation; switched capacitor networks; 0.25 micron; analog-to-digital converters; design guidelines; noise artifacts; noise modeling; physical model; switched-capacitor ADC; wireless receiver; Analog-digital conversion; Capacitance; Circuit noise; Circuit simulation; Feedback; Sampling methods; Semiconductor device measurement; Steady-state; Switches; Switching converters; Analog-to-digital converters (ADCs); delta Sigma; noise; switched capacitor;
Journal_Title :
Circuits and Systems I: Regular Papers, IEEE Transactions on
DOI :
10.1109/TCSI.2005.853948
