Author Topic: Example Project: Relay scan card for K2000 DMM  (Read 15896 times)

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Online Kleinstein

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Re: Example Project: Relay scan card for K2000 DMM
« Reply #25 on: February 23, 2023, 10:21:15 am »
If the software allows for a correction of the absolute temperature, one could also go with the AD590JH. Less accurate absolute value, but in a metal can likely more stable than the SO8 version.
Chances are one could make the layout to allow for both footprints.
 

Offline gmac34

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Re: Example Project: Relay scan card for K2000 DMM
« Reply #26 on: February 23, 2023, 11:30:42 am »
I was thinking the SOIC would couple better with a plane but maybe a can, placed through a hole and thermal epoxy-ed to the plane is better anyway
 

Offline gmac34

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Re: Example Project: Relay scan card for K2000 DMM
« Reply #27 on: February 23, 2023, 04:14:38 pm »
Something like this, the AD590 can go through the PCB and use some thermal paste or epoxy to couple with the ground plane
 

Offline Smokey

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Re: Example Project: Relay scan card for K2000 DMM
« Reply #28 on: December 20, 2023, 04:01:24 am »
I love it when I search for something random on google and it points me right back to EEVBlog.  Not sure how I missed this.  An original card sold on ebay for $450 last month.
 


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