Author Topic: Better digital thermocouple IC than Max31855  (Read 2982 times)

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Offline embedded.world@aol.comTopic starter

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Better digital thermocouple IC than Max31855
« on: June 13, 2014, 09:16:50 am »
Max31855 is digital thermocouple IC .

Is there any better digitally compensated IC which have better resolution/accuracy & sampling time for K-type thermocouple
 

Online mariush

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Re: Better digital thermocouple IC than Max31855
« Reply #1 on: June 13, 2014, 12:17:47 pm »
I've recently made a thermometer using AD595 - amplifies thermocouple output to 10mV / C  (+0.011mv/C offset) , +/-1 C for the precision version, +/-3C otherwise, up to 1250c, not just 0 to 700c.  You still need a mcu to convert the voltage to temperature, but it's possible to get better than 0.25c steps.
« Last Edit: June 13, 2014, 09:27:05 pm by mariush »
 

Offline echen1024

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Re: Better digital thermocouple IC than Max31855
« Reply #2 on: June 13, 2014, 08:31:22 pm »
I've recently made a thermometer using AD595 - amplifies thermocouple output to 10mV / C  (+0.011v/C offset) , +/-1 C for the precision version, +/-3C otherwise, up to 1250c, not just 0 to 700c.  You still need a mcu to convert the voltage to temperature, but it's possible to get better than 0.25c steps.
I use the newer version of the chip, the AD8497.
I'm not saying we should kill all stupid people. I'm just saying that we should remove all product safety labels and let natural selection do its work.

https://www.youtube.com/user/echen1024
 

Offline nsayer

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Re: Better digital thermocouple IC than Max31855
« Reply #3 on: June 14, 2014, 02:54:23 am »
I second the AD849x... In my case I chose the AD8495. A third the price of the 595, but it is only available SMD.
Buy my stuff!! It's not at all terrible!! http://tindie.geppettoelectronics.com/
 


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