A 1-V 2.6-mW Environmental Compensated Fully Integrated Nose-on-a-Chip

作者：Chou, Ting-I; Chang, Kwuang-Han; Jhang, Jia-Yin; Chiu, Shih-Wen; Wang, Guoxing; Yang, Chia-Hsiang; Chiueh, Herming; Chen, Hsin; Hsieh, Chih-Cheng; Chang, Meng-Fan; Tang, Kea-Tiong^*

来源：IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, 2018, 65(10): 1365-1369.

DOI：10.1109/TCSII.2018.2854588

• Nose-on-a-chip
• system on chip (SoC)
• e-nose system
• environmental compensation

Miniature gas detection system is desirable for many applications. In this brief, we propose a fully integrated nose-on-a-chip for mobile phones and wearable devices. The chip has 36 on-chip sensors, a 36-channel adaptive interface with an integrated programmable amplifier, a four-channel frequency readout interface, one on-chip temperature sensor, a successive approximation analog-to-digital converter, a scalable learning kernel cluster, and a reduced instruction set computing core with low-voltage static random-access memory. This chip is fabricated using the TSMC 180-nm CMOS process and consumes 2.6 mW at 1 V. on-chip temperature and humidity sensors are included in this system for acquiring environmental information. An environmental compensation algorithm based on common principal components analysis is also implemented for high-accuracy odor classification. This fully integrated nose-on-a-chip provides promising results for odor detection and classification for use in mobile and wearable device applications.

• 出版日期2018-10
• 单位中国科学院电工研究所; 清华大学; 上海交通大学