Tousethe on-chiptemperature sensor,the userselectsthe analoginput channelINCHx =1010.Any
otherconfigurationis doneasif anexternalchannelwasselected,including referenceselection,
conversion-memoryselection,etc.
Thetypical temperature sensortransfer function is shownin Figure23-10. Whenusingthe temperature sensor,the sampleperiodmustbegreaterthan 30µs.The temperature sensor offset error can be large,and may need to be calibrated for most applications.See device-specific datasheet for parameters.
Selectingthe temperature sensorautomaticallyturns onthe on-chipreferencegeneratorasavoltage
sourcefor the temperature sensor.However,it doesnotenablethe V
REF+
outputoraffectthe reference
selectionsfor the conversion.Thereferencechoicesfor convertingthe temperature sensorarethe same
aswithanyotherchannel.