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identify temperature IC

jfk

Mar 28, 2016
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Mar 28, 2016
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I've seen an temperature IC that drops the voltage out of a pin as the chip warms up.
Is anyone familiar with what it might be?
 

jfk

Mar 28, 2016
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Doesn't the LM35 raise output voltage as temp rises?
 

Arouse1973

Adam
Dec 18, 2013
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Dec 18, 2013
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You could use an inverting buffer to invert the signal. Don't know of an IC that goes the other way, Maxim might do one.
Adam
 

AnalogKid

Jun 10, 2015
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There are thermometer (temperature transducer or sensor) IC's and there are thermostat ICs. All of the sensor's I've seen have a positive output coefficient - voltage goes up when temperature goes up. Thermostat ICs do not make a linear output. The output is a digital logic low or high, and it changes state when the temperature crosses a threshold. The direction of the change varies with the chip, or some chips produce both.

Dozens on the market. Part number?????????????????????????????????????

ak
 

jfk

Mar 28, 2016
13
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Mar 28, 2016
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Agreed on all that. Thanks. The circuit I saw was unusual, so just trying to figure out what they did.
 
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