Title :
A CMOS digitized gas transducer with noise insensitivity for environmental monitoring of CO2 concentration
Author :
Cheng-Ta Chiang ; Chang-Chih Hsieh
Author_Institution :
Dept. of Electr. Eng., Nat. Chia Yi Univ., Chiayi, Taiwan
Abstract :
In this paper, a CMOS digitized gas transducer with noise insensitivity for environmental monitoring of CO2 concentration is newly proposed. Based upon the device parameters of 0.35 μm 2P4M CMOS technology with 3.0 V power supply, all the functions and performance of the proposed digitized gas transducer are successfully tested and proven through MATLAB in the behavior simulations and SPICE simulations. The chip area is 1.18 × 2.48 mm2. The proposed general-purpose chip is suitable for various gas environmental monitoring devices, such as CO2 concentration detecting instruments.
Keywords :
CMOS integrated circuits; carbon compounds; chemical variables measurement; gas sensors; noise measurement; transducers; 2P4M CMOS technology; CMOS digitized gas transducer; CO2; MATLAB simulation; SPICE simulation; concentration detection instrument; environmental monitoring; noise insensitivity; size 0.35 mum; voltage 3.0 V; CMOS integrated circuits; Environmental monitoring; Gain; Gas detectors; Modulation; Noise; Transducers; continuous-time delta-sigma modulator; gas sensor; gas transducer;
Conference_Titel :
Networking, Sensing and Control (ICNSC), 2015 IEEE 12th International Conference on
Conference_Location :
Taipei
DOI :
10.1109/ICNSC.2015.7116010
