Microcontroller sensor interfacing exercises

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TMP36 temperature sensor

• sensitivity: 10mV/C; offset: 750 mV at 25 C
• output voltage range: 0.1 V to 1.75 V

ADC

• Voltage reference: 2.048 V
• Number of bits: 16
• Jusfitication: right

Signal conditioning

• direct connection

To do:

• Write a function that calculates the ADC code as a function of the sensed value!

Test data:

sensor input	sensor output	ADC input	ADC output	calculated sensor input
76 C	1.26 V	1.26 V	40320	76 C
105 C	1.55 V	1.55 V	49600	105 C
43 C	0.93 V	0.93 V	29760	43 C