Title
A hybrid current-mode passive second-order continuous-time ΣΔ modulator
Abstract
This paper describes the design of a current-mode, active-passive second-order, continuous-time Sigma-Delta Modulator(ΣΔM). The proposed ΣΔM uses a single continuous-time current-mode integrator combined with low-pass passive filter topology. The resulting circuit, designed in a 65 nm 1.2 V CMOS technology, has a bandwidth of 2 MHz for a clock frequency of 400 MHz. The electrical simulation results show that it achieves a maximum signal-to-noise-plus-distortion ratio (SNDR) of 60.7 dB and a dynamic range(DR) of 65 dB while dissipating 132 μW which corresponds to an efficiency of 37.3 fJ/conv. The proposed architecture allows to obtain the best compromise between power consumption and performance of the ADC.
Year
DOI
Venue
2014
10.1109/MIXDES.2014.6872168
MIXDES
Keywords
Field
DocType
cmos digital integrated circuits,current-mode circuits,low-pass filters,sigma-delta modulation,adc,cmos technology,sndr,bandwidth 2 mhz,dynamic range,electrical simulation,frequency 400 mhz,hybrid current-mode passive second-order continuous-time σδ modulator,low-pass passive filter topology,power 132 muw,power consumption,sigma-delta modulator,signal-to-noise-plus-distortion ratio,single continuous-time current-mode integrator,size 65 nm,voltage 1.2 v,current-mode,sigma delta modulator,frequency modulation,low pass filters,cmos integrated circuits
Electronic filter,Dynamic range,Computer science,Integrator,Modulation,Electronic engineering,CMOS,Delta-sigma modulation,Bandwidth (signal processing),Electrical engineering,Clock rate
Conference
Citations 
PageRank 
References 
1
0.36
3
Authors
5
Name
Order
Citations
PageRank
Pawel Sniatala1174.54
Mariusz Naumowicz271.83
de Melo, J.L.A.310.70
Nuno F. Paulino47224.92
João Goes58827.95