Temperatur/Frequency conversion circuit ( low power programmable integrated temperature controller TMP01)

Published:2011/9/10 22:00:00 Author:Felicity | Keyword: Temperatur/Frequency conversion circuit, low power, programmable , integrated temperature controller | From:SeekIC

During long distance transmission, temperature signal can be converted into frequency signal and the circuit is shown in the figure. The AD654 voltage/frequency convertor (VFC for short) is adopted in the circuit which can suppress the noise disturbance and voltage fluctuation. When the precision of U/f conversion is enough, the output signal can stand for the test temperature which determined as follow. And CT is the capacity of the external timing capacitor of the internal oscillator. The frequency can be corrected by adjusting R5.



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