piclist 2000\05\23\002919a >
Thread: Adjusting voltage output of a temperature sensor
face BY : Damon Hopkins email (remove spam text)

Dean Biddle wrote:
> Hi,
> Are there alternative(s) to an operational amplifier (supplied by +ve and
> -ve) to adjust the voltage output of an LM335 temperature sensor from
> approx. 2.5 to 3.5 volts to span the 0 to 5 volt range for a P16F87x A/D
> converter?  My application needs to consume minimal current and preferably
> use only one battery.  Can another option for the configuration of the A/D
> system be used other than limiting Vref+ to approx. 3.5 volts?
> I assume this is common, so please simply refer me to a relevant past
> PICLIST thread if I failed to match the thread in my "pre-post" search.

Excellent question.. I await the answer because right now I'm using an
OP AMP to do it... I hope there is..

               Damon Hopkins

<392A08B8.597EA01@unity.ncsu.edu> 7bit

See also: www.piclist.com/techref/io/sensors.htm?key=temperature
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