connection of a thermal sensor TC1047AVNBTR to the microcontroller MSP430F4618

Thread Starter

Alex9

Joined Sep 3, 2013
10
Where I can get the diagram of connection of a thermal sensor TC1047AVNBTR to the ADC of microcontroller MSP430F4618 ? Also interestingly, on what formulas it calculate ? Thank you.
 

MaxHeadRoom

Joined Jul 18, 2013
28,576
Well the data for the sensor is all over the internet, and its output characteristics?
You require an analogue input that reads the from .1 (-40°c) to 1.75v (+125°c), and higher?.
Max.
 

Thread Starter

Alex9

Joined Sep 3, 2013
10
I have read this http://pdf.datasheetcatalog.net/datasheet2/7/0tuoqyxejh1dg253pa5egfyop6cy.pdf
I found the connection diagram only for KTS-1 thermal sensor. I attach its image.


Vadc - tension measured ADC in volts
Radc - input resistance
Cadc - input capacity
Rt - thermoresistor
Vsrc - power supply output
R1 - the termination resistor
ADC - analog digitizer inputs
I have documents on the microcontroller:
http://www.ti.com/lit/ug/slau213a/slau213a.pdf
http://www.ti.com.cn/cn/lit/ds/slas675/slas675.pdf
Thank you. How to me to adapt this diagram for my sensor?
 

ErnieM

Joined Apr 24, 2011
8,377
Alex: the first schematic fragment is all you need do. "ADC" connects to the A2D input and return of your micro.

Adding a Ct as in the 2nd figure is a good idea if you are reading noise. The exact value will depend on the resistors and the noise source, but something around 0.01 to 0.1 uF should do more good then harm.
 

Thread Starter

Alex9

Joined Sep 3, 2013
10
How to connect this sensor through the bridge of Witson with compensating? In the bridge of 2 jumpers it is required, and at the sensor 3 pins.
 

Thread Starter

Alex9

Joined Sep 3, 2013
10
I am limited in connection by RF1 and RF2 connectors of the experimental board. It isn't possible to find their characteristic to select to itself the necessary 2 outputs for my sensor (ground and power). Can you help me ? I looked for information in board and microcontroller documentation. I entered into search the words signed at pinches of these connectors on the diagram of a board. The power supply range of my sensor is from 2.5V
to 5.5V (there is a built-in stabilizator) and supply current 35-60 μA. I read this docs http://www.ti.com/tool/msp-exp430fg4618. Thank you.
 
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