Simple_differential_thermometer

Published:2009/7/24 2:16:00 Author:Jessie | From:SeekIC

Fig. 13-12 This circuit produces an output voltage that is proportional to the temperature difference between the two LM34s. The difference amplifier sub-tracts the LM34 outputs from one another and then multiplies the difference by a factor of 10 to provide a single-ended output of 100 mV/°F of differential temperature. National Semiconductor Linear Applications Handbook 1991, p 1079.



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