Title :
Improved multi-loop SMASH sigma-delta modulator for wideband applications
Author :
Li, Hongyi ; Wang, Yuan ; Jia, Song ; Zhang, Xing
Author_Institution :
Key Lab. of Microelectron. Devices & Circuits, Peking Univ., Beijing, China
Abstract :
In this paper, a novel design method has been proposed to realize feed-forward low-distortion unity STF sigma-delta modulators which are the critical blocks in multi-loop SMASH structure. Using the method, a timing-relaxed stable unity STF 2nd-order modulator has been proposed in detail. After that, an extremely high-resolution SMASH 2(3b)-2(3b)-1(2b) has been suggested using the proposed stages. Extensive results prove the efficiency of this topology.
Keywords :
sigma-delta modulation; design method; feed-forward low-distortion unity STF sigma-delta modulator; multiloop SMASH sigma-delta modulator; timing-relaxed stable unity STF 2nd-order modulator; wideband application; Computer languages; Switches; Wideband; MASH; SMASH; high resolution; low-distortion; sigma-delta modulator;
Conference_Titel :
Electron Devices and Solid-State Circuits (EDSSC), 2010 IEEE International Conference of
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-9997-7
DOI :
10.1109/EDSSC.2010.5713721
