Title :
A Low-Power Strategy for Delta-Sigma Modulators
Author :
Pesenti, S. ; Clement, P. ; Stefanovic, D. ; Kayal, M.
Author_Institution :
Marvell Semicond., Etoy
Abstract :
This paper presents a hybrid continuous-discrete-time delta-sigma modulator for portable communication systems following a low-power strategy. The proposed design methodology is extendable to different specifications. A multi-bit technique has been introduced in an efficient manner to optimize the power consumption, and an adaptive algorithm is used to allow for a 3-fold reduction in the number of comparators.
Keywords :
comparators (circuits); continuous time systems; delta-sigma modulation; discrete time systems; modulators; power consumption; comparators; delta-sigma modulators; hybrid continuous-discrete-time delta-sigma modulator; low-power strategy; portable communication systems; power consumption; CMOS technology; Clocks; Delta modulation; Design methodology; Energy consumption; Feedback; Frequency; Noise shaping; Quantization; Sampling methods; Auto-ranging algorithm; Delta-Sigma modulator; Mismatch shaping encoder; Multi-bit;
Conference_Titel :
Mixed Design of Integrated Circuits and Systems, 2007. MIXDES '07. 14th International Conference on
Conference_Location :
Ciechocinek
Print_ISBN :
83-922632-9-4
Electronic_ISBN :
83-922632-9-4
DOI :
10.1109/MIXDES.2007.4286151
