Temperature measurement circuit with silicon heating sensitive elements

Published:2011/8/26 2:48:00 Author:Jessie | Keyword: Temperature measurement, silicon heating sensitive elements | From:SeekIC

This circuit makes silicon heating sensitive elements as sensor,and it isconnected to the brige road and about 2.5V constant voltage. Operational amplifier V1is used as pulse converter, V2 is used as amplifier. Output voltage is between 0 ~ 5V, and it has 50mV/K scale factor between the range of 0 to 100 ℃. The temperature range endpoint is connected an adjusting circuit. First, adjusting the R9 at 0 ℃, then adjusting R4 at 100 ℃. Measurement error can be restricted in ± 0.2K.



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