A 1-V 2.6-mW Environmental Compensated Fully Integrated Nose-on-a-Chip
Journal
IEEE Transactions on Circuits and Systems II
Journal Volume
65
Journal Issue
10
Pages
562
Date Issued
2018
Author(s)
T.-I Chou
K.-H. Chang
J.-Y. Jhang
S.-W. Chiu
G. Wang
H. Chiueh
H. Chen
C.-C. Hsieh
M.-F. Chang
K.-T. Tang
Abstract
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.
Subjects
e-nose system; environmental compensation; Nose-on-a-chip; system on chip (SoC)
Other Subjects
Analog to digital conversion; Cluster computing; Electronic nose; Programmable logic controllers; Reduced instruction set computing; Static random access storage; Wearable technology; Environmental compensation; Environmental information; Gas detection systems; Nose-on-a-chip; Principal components analysis; Static random access memory; Successive approximation analog-to-digital converters; System on chips (SoC); System-on-chip
Type
journal article