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Pertijs, M.A.P. (author), Aita, AL (author), Makinwa, K.A.A. (author), Huijsing, J.H. (author)Smart temperature sensors generally need to be trimmed to obtain measurement errors below ±2°C. The associated temperature calibration procedure is time consuming and therefore costly. This paper presents two, much faster, voltage calibration techniques. Both make use of the fact that a voltage proportional to absolute temperature (PTAT) can be...journal article 2010