Important Design Considerations for Digital Thermometers

Abstract: This application note is an introduction to the types of digital thermometers and the basic concept of how thermistors and thermopiles calculate temperature. The use of natural logs versus lookup tables, the trade-offs designers make for faster calculation and accuracy, and the various components needed for a digital thermometer are also discussed.
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Keywords: digital thermometer, temperature, portable medical, electrical components, block diagram, thermistor, thermopile

May 10, 2010
APPLICATION NOTE4690
Important Design Considerations for Digital Thermometers
By:John DiCristina

Abstract:This application note is an introduction to the types of digital thermometers and the basic concept of how thermistors and
thermopiles calculate temperature. The use of natural logs versus lookup tables, the trade-off