An Integrated Low-Power Lock-In Amplifier and Its Application to Gas Detection

@inproceedings{MayaHernandez2014AnIL,
  title={An Integrated Low-Power Lock-In Amplifier and Its Application to Gas Detection},
  author={Paulina Mariana Maya-Hernandez and Luis C. {\'A}lvarez-Sim{\'o}n and Maria Teresa Sanz and Bel{\'e}n Calvo},
  booktitle={Sensors},
  year={2014}
}
This paper presents a new micropower analog lock-in amplifier (LIA) suitable for battery-operated applications thanks to its reduced size and power consumption as well as its operation with single-supply voltage. The proposed LIA was designed in a 0.18 µm CMOS process with a single supply voltage of 1.8 V. Experimental results show a variable DC gain ranging from 24.7 to 42 dB, power consumption of 417 µW and integration area of 0.013 mm2. The LIA performance was demonstrated by measuring… CONTINUE READING

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