Low-Power CMOS Smart Temperature Sensor With a Batch-Calibrated Inaccuracy of ± 0 . 25 ° C ( ± 3 ) from 70 ° C to 130 °

@inproceedings{Aita2018LowPowerCS,
  title={Low-Power CMOS Smart Temperature Sensor With a Batch-Calibrated Inaccuracy of ± 0 . 25 ° C ( ± 3 ) from 70 ° C to 130 °},
  author={Aita and Michiel Pertijs and Johan H Meijer Kofi Huijsing and G{\'e}rard},
  year={2018}
}
In this paper, a low-power CMOS smart temperature sensor is presented. The temperature information extracted using substrate PNP transistors is digitized with a resolution of 0.03°C using a precision switched-capacitor (SC) incremental ∆Σ A/D converter. After batch calibration, an inaccuracy of ±0.25°C (±3σ) from –70°C to 130°C is obtained. This represents a two-fold improvement compared to the state-ofthe-art. After individual calibration at room temperature, an inaccuracy better than ±0.1°C… CONTINUE READING

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