@article{(Open Science Index):https://publications.waset.org/pdf/10008472,
	  title     = {The Excess Loop Delay Calibration in a Bandpass Continuous-Time Delta Sigma Modulators Based on Q-Enhanced LC Filter},
	  author    = {Sorore Benabid},
	  country	= {},
	  institution	= {},
	  abstract     = {The Q-enhanced LC filters are the most used
architecture in the Bandpass (BP) Continuous-Time (CT)
Delta-Sigma (ΣΔ) modulators, due to their: high frequencies
operation, high linearity than the active filters and a high quality
factor obtained by Q-enhanced technique. This technique consists
of the use of a negative resistance that compensate the ohmic
losses in the on-chip inductor. However, this technique introduces a
zero in the filter transfer function which will affect the modulator
performances in term of Dynamic Range (DR), stability and in-band
noise (Signal-to-Noise Ratio (SNR)). In this paper, we study the
effect of this zero and we demonstrate that a calibration of the
excess loop delay (ELD) is required to ensure the best performances
of the modulator. System level simulations are done for a 2ndorder
BP CT (ΣΔ) modulator at a center frequency of 300MHz. Simulation
results indicate that the optimal ELD should be reduced by 13% to
achieve the maximum SNR and DR compared to the ideal LC-based
ΣΔ modulator.},
	    journal   = {International Journal of Electronics and Communication Engineering},
	  volume    = {12},
	  number    = {1},
	  year      = {2018},
	  pages     = {68 - 71},
	  ee        = {https://publications.waset.org/pdf/10008472},
	  url   	= {https://publications.waset.org/vol/133},
	  bibsource = {https://publications.waset.org/},
	  issn  	= {eISSN: 1307-6892},
	  publisher = {World Academy of Science, Engineering and Technology},
	  index 	= {Open Science Index 133, 2018},
	}