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An accurate biomedical temperature transducer with on-chip microcomputer interfacing

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3 Author(s)
Meijer, G.C.M. ; Dept. of Electr. Eng., Delft Univ. of Technol., Netherlands ; Boomkamp, A.J.M. ; Duguesnoy, R.J.

The authors describe a novel smart temperature sensor with on-chip signal processing. The output signal consists of a temperature-dependent frequency and a reference frequency that are time-multiplexed and can be read out by a microcomputer. This sensor, which has been designed for biomedical applications, has an accuracy of ±0.1°C in the temperature range of 32-44°C and a minimum supply voltage of only 2.5 V

Published in:

Solid-State Circuits, IEEE Journal of  (Volume:23 ,  Issue: 6 )