Title :
An incremental sigma delta converter for compressive sensing applications
Author :
Wang, Hsuan-Tsung ; Leon-Salas, Walter D.
Author_Institution :
Univ. of Missouri-Kansas City, Kansas City, MO, USA
Abstract :
An analog-to-digital converter suitable for compressive sensing applications is presented. The converter is based on an incremental sigma-delta converter architecture and is able to directly acquire and convert to digital format compressive sensing measurements. A switched-capacitor circuit is proposed for the converter´s hardware implementation. Simulations at the system and transistor levels validate the approach. The converter occupies a small area of 0.047 mm2 on a target 0.5 μm CMOS process. Thus, several of them can be implemented in parallel to achieve high conversion rates.
Keywords :
CMOS integrated circuits; capacitors; compressed sensing; sigma-delta modulation; switched capacitor networks; CMOS process; analog-to-digital converter; compressive sensing; converter hardware implementation; incremental sigma delta converter; incremental sigma-delta converter architecture; size 0.5 mum; switched-capacitor circuit; Compressed sensing; Computer architecture; Equations; Matrix converters; Quantization; Sensors; Sigma delta modulation;
Conference_Titel :
Circuits and Systems (ISCAS), 2011 IEEE International Symposium on
Conference_Location :
Rio de Janeiro
Print_ISBN :
978-1-4244-9473-6
Electronic_ISBN :
0271-4302
DOI :
10.1109/ISCAS.2011.5937617
