Digital centigrade thermometer

Posted on Feb 7, 2014

This circuit shows an ICL7106 connected with a silicon transistor to form a digital thermometer. Direct connections between the ICL7106 and an LCD display are shown in Fig. 12-11B. A diode-connected silicon transistor has a temperature coefficient of about -2 mV/ƒ. To achieve calibration, place the sensing transistor in ice water and adjust the

Digital centigrade thermometer
Click here to download the full size of the above Circuit.

zeroing potentiometer for a 000. 0 reading. Then, place the sensor in boiling water and adjust the scale-factor potentiometer for a 100. 0 reading. Bards Semiconductors Data Acquisition, 1991 p 2-32, 2 39

Leave Comment

characters left:

Related Circuits

  • New Circuits



    Popular Circuits

    InfraRed Remote Switch
    Car lamp failure detector
    200 Watt audio power amplifier
    Switching Regulator Converter Circuit
    touch alarm system
    Pushbutton Relay Selector
    Reference earphones
    Solar Charger Build
    USB Live Oscilloscope: Main Board
    Reverse voltage and over-voltage surge protection circuit diagram XTR106
    A digital display timer circuit diagram