Title :
Design of a monolithic low-power micro-sensor signal processing system
Author :
Wang, Zhuping ; Zhang, Keshu
Author_Institution :
Dept. of Microelectron., Chinese Acad. of Sci., Beijing, China
Abstract :
A monolithic low-power micro-sensor signal processing system with 8bit resolution for the active flow control of micro air vehicles (MAVs) boundary layer separation is proposed, which is composed of an analog low-pass filter, a sigma-delta modulator and a bandgap reference. In order to obtain lower-power, higher-precision and efficient-area, the correlated double sampling (CDS) technology, sub-threshold technology, optimization switches and simple circuit topologies are employed in the design. The overall system was implemented in Central Semiconductor Manufacturing Corporation (CSMC) double-poly three-metal (2P3M) 0.5um 3.3V CMOS technology. The measurement shows that the chip achieves a 54.40dB signal noise ratio (SNR). The die area occupies 3.30mm2 and dissipates only 9.55mW power.
Keywords :
CMOS integrated circuits; aircraft control; circuit optimisation; digital signal processing chips; low-pass filters; microsensors; network topology; sigma-delta modulation; signal resolution; signal sampling; 8-bit resolution; MAV boundary layer separation; active flow control; analog low-pass filter; bandgap reference; central semiconductor manufacturing corporation double-poly three-metal CMOS technology; correlated double sampling technology; microair vehicles boundary layer separation; monolithic low-power microsensor signal processing system; optimization switch; power dissipation; sigma-delta modulator; signal noise ratio; simple circuit topology; size 0.5 mum; subthreshold technology; voltage 3.3 V; Bandwidth; CMOS integrated circuits; Lead; Photonic band gap; Signal to noise ratio; Switches; Tuning; active flow control; boundary layer separation; low-power; micro-sensor signal processing system; monolithic;
Conference_Titel :
ASIC (ASICON), 2011 IEEE 9th International Conference on
Conference_Location :
Xiamen
Print_ISBN :
978-1-61284-192-2
Electronic_ISBN :
2162-7541
DOI :
10.1109/ASICON.2011.6157329
