Title :
A New Approach for DAC Non-linearity Compensation in Continuous Time Delta Sigma Modulators
Author :
Shamsi, Hossein ; Shoaei, Omid
Author_Institution :
Dept. of Electr. & Comput. Eng., Tehran Univ.
Abstract :
In this paper making use of the continuous behavior of the integrators of the continuous time delta sigma modulators (CT DSMs), a new circuit for the linearization of the multi-bit DAC of the modulator is proposed that compared to its traditional counterparts is much smaller. The required formulas for the linearization of the multi-bit DAC are derived and the validity of those is proven by MATLAB and HSPICE simulations
Keywords :
SPICE; delta-sigma modulation; integrating circuits; linearisation techniques; mathematics computing; DAC nonlinearity compensation; HSPICE; MATLAB; continuous time delta sigma modulators; multibit DAC linearization; Additive noise; Circuit optimization; Degradation; Delta modulation; Delta-sigma modulation; Digital modulation; Error correction; Modulation coding; Multi-stage noise shaping; Noise shaping; DAC non-linearity compensation; Delta-Sigma modulator; continuous time;
Conference_Titel :
Circuits and Systems, 2006. APCCAS 2006. IEEE Asia Pacific Conference on
Conference_Location :
Singapore
Print_ISBN :
1-4244-0387-1
DOI :
10.1109/APCCAS.2006.342364
