TY - GEN
T1 - A low-power wide-dynamic-range readout IC for breath analyzer system
AU - Lin, Yingkan
AU - Gouma, Perena
AU - Stanacevic, Milutin
PY - 2013
Y1 - 2013
N2 - We present a low-power wide-dynamic-range readout circuit that directly interfaces a selective metal-oxide gas sensor. The proposed novel readout architecture implements an adaptive baseline compensation and limits the sensor current. The readout IC can interface the sensors with the baseline resistance from 1 k to 100 M and measures the gas induced resistance change in the range from 0.05% to 10% of the baseline resistance. The simulations demonstrate the 166 dB dynamic range of the readout circuit and 113 μW power consumption amenable to the sensors that can operate at room temperature for the application of the proposed system in portable breath analyzers.
AB - We present a low-power wide-dynamic-range readout circuit that directly interfaces a selective metal-oxide gas sensor. The proposed novel readout architecture implements an adaptive baseline compensation and limits the sensor current. The readout IC can interface the sensors with the baseline resistance from 1 k to 100 M and measures the gas induced resistance change in the range from 0.05% to 10% of the baseline resistance. The simulations demonstrate the 166 dB dynamic range of the readout circuit and 113 μW power consumption amenable to the sensors that can operate at room temperature for the application of the proposed system in portable breath analyzers.
UR - https://www.scopus.com/pages/publications/84883389201
U2 - 10.1109/ISCAS.2013.6572219
DO - 10.1109/ISCAS.2013.6572219
M3 - Conference contribution
SN - 9781467357609
T3 - Proceedings - IEEE International Symposium on Circuits and Systems
SP - 1821
EP - 1824
BT - 2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013
T2 - 2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013
Y2 - 19 May 2013 through 23 May 2013
ER -