mbed

I have five on order that should be getting here this week...  I'd be interested to hear if anyone has too, or if I get it working beforehand.. Perhaps I'll share.. =)

glen dobranski wrote:

Anyone work with this guy?

 

Is there a reason you need to use an analog sensor over a digital one? A digital one such as LM75B or DS1631 will be much easier and won't need to be calibrated with a pot.(only reason I can really see maybe is waterproof or cost-sensitive application... or maybe thermocouple compensation)

Otherwise, its just like any other sensor, plug into ADC and calibrate with pot.

I'm using them because they are cheap...  $1.35 in quantity, and I don't need a particularly accurate temperature reading...just a too hot or not too hot gauge..  The 1631 or even 1820 are wonderful, but way overkill for some apps...  (my two cents...)  

 =)

Mark x wrote:

I'm using them because they are cheap...  $1.35 in quantity, and I don't need a particularly accurate temperature reading...just a too hot or not too hot gauge..  The 1631 or even 1820 are wonderful, but way overkill for some apps...  (my two cents...)  

 =)

http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=568-4769-1-ND

92 cents for singles..
29 cents in quantity...
plus you don't need a pot...
granted, its not the easiest to use package in the world, there are similar ones in DIP package (similar cost).

=p

And it's I2C even! I'm sold.  The TSSOP8 or even SO8 would be easy to work with... 

Thanks, Michael!  Glen....hope I didn't hijack this too much..and maybe you found this info useful too.... =)

You can get the TSSOP8 here in smaller than 2500piece quantities.... less than 1$ea...  http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=568-4768-1-ND

or here in the 8-SOIC package for ~1$ea....  http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=568-4688-1-ND

OR... if you like smaller prices....Try $0.46ea (singles) in the TSSOP-8 package...at Mouser.!!!    http://www.mouser.com/ProductDetail/NXP-Semiconductors/LM75BDP118/?qs=sGAEpiMZZMsrT%252b%252bRgDw3Nt0dGHVb6SM3HxNM6J1hXoo%3d

I just noticed while ordering some of these LM75s from mouser, I made a quick check and sure enough...SparkFun has a nice break out board for the SSOP8 package to dip...  Anyone notice if there is there a footprint difference between TSSOP and SSOP?

(If it works, and if you don't mind paying $2.95 for the breakout when the part only costs 0.46).. but that's the cost of convenience!

http://www.sparkfun.com/commerce/product_info.php?products_id=497