connection of a thermal sensor TC1047AVNBTR to the microcontroller MSP430F4618

Discussion in 'Embedded Systems and Microcontrollers' started by Alex9, Sep 3, 2013.

  1. Alex9

    Thread Starter New Member

    Sep 3, 2013
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    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.
     
  2. joeyd999

    AAC Fanatic!

    Jun 6, 2011
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    Perhaps you should read the data sheet.

    Then ask some specific questions.
     
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  3. MaxHeadRoom

    Expert

    Jul 18, 2013
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    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.
     
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  4. Alex9

    Thread Starter New Member

    Sep 3, 2013
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    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.
    [​IMG]
    [​IMG]
    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?
     
  5. ErnieM

    AAC Fanatic!

    Apr 24, 2011
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    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.
     
  6. Alex9

    Thread Starter New Member

    Sep 3, 2013
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    Thanks. How I can prove a scheme choice in figure 1?
     
  7. Alex9

    Thread Starter New Member

    Sep 3, 2013
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    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.
     
  8. Alex9

    Thread Starter New Member

    Sep 3, 2013
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    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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