Important Design Considerations for Digital Thermometers

Abstract:Thisapplicationnoteisanintroductiontothetypesofdigitalthermometersandthebasicconceptofhowthermistorsandthermopilescalculatetemperature.Theuseofnaturallogsversuslookuptables,thetrade-offsdesignersmakeforfastercalculationandaccuracy,andthevariouscomponentsneededforadigitalthermometerarealsodiscussed.Maxim>Designsupport>Appnotes>A/DandD/AConversion/SamplingCircuits>APP4690Maxim>Designsupport>Appnotes>DisplayDrivers>APP4690Maxim>Designsupport>Appnotes>Microcontrollers>APP4690Keywords:digitalthermometer,temperature,portablemedical,electricalcomponents,blockdiagram,thermistor,thermopileMay10,2010APPLICATIONNOTE4690ImportantDesignConsiderationsforDigitalThermometersBy:JohnDiCristinaAbstract:Thisapplicationnoteisanintroductiontothetypesofdigitalthermometersandthebasicconceptofhowthermistorsandthermopilescalculatetemperature.Theuseofnaturallogsversuslookuptables,thetrade-off