-55-+150℃ Digital thermometer circuit diagram

Published:2011/3/30 20:52:00 Author:Ecco | Keyword: -55-+150℃ Digital thermometer | From:SeekIC

This digital thermometer electrocircuit is composed of SL590, a new semiconductor IC temperature-sensitive sensor and three half digital voltage panel 5GM14433, and it can measure the temperature in the range of -55~15o ℃. The SL590 make the temperature be a type of current semaphore, which become ratio's voltage semaphore at Celsius temperature after making the null point displacement by operational amplifier, and sent to the UX input terminal of 5GM14433, then be digital quantity displayed by LED. The supply is d.c two types, and alternating current supplyed by 220V, also could be supplyed by 4 pieces of 1.5V batteries.



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