Ronnie Posted January 26 Share Posted January 26 Hello, Is there is a maximum board temperature that causes the AD3 to shut down? Example: 72c? Does the AD2 have any such max temp restrictions? Link to comment Share on other sites More sharing options...
0 attila Posted January 26 Share Posted January 26 Hi @Ronnie See Settings/Options/Device (This refers to the device FPGA die temperature.) Link to comment Share on other sites More sharing options...
0 Ronnie Posted January 26 Author Share Posted January 26 Hello, Do you know what the default would be if not using Waveforms software (only using API to control)? and anyway to set the Temp Limit programmable via API? Link to comment Share on other sites More sharing options...
0 Ronnie Posted January 27 Author Share Posted January 27 If we set this value in Waveforms, will it remember it for API usage? through reboot. Thanks Link to comment Share on other sites More sharing options...
0 Ronnie Posted January 27 Author Share Posted January 27 (edited) I found that maybe I need to set https://docs.rs/dwf/latest/dwf/dwf/constant.DwfParamTempLimit.html# param 11, which seems to work. Let me know if any gotcha on this? Some background: We are using the AD3 in an outdoor environment, on a hot day -- we are looking into ways to help us with thermal issues, but need to go beyond 85c for now. How hot can we go before this thing breaks? :P Edited January 27 by Ronnie background added Link to comment Share on other sites More sharing options...
0 attila Posted January 29 Share Posted January 29 Hi @Ronnie The default limit is 85*C measured on the FPGA die, which is usually the hottest IC on the board. This is the recommended maximum temperature for the FPGA. Above this various problems could occur, measurement drifts, FPGA/ADC/DAC timing problems... The absolute maximum rating for the FPGA is 125*C See the WaveForms SDK Reference Manual.pdf Link to comment Share on other sites More sharing options...
0 Ronnie Posted February 6 Author Share Posted February 6 Hello @attila Do you know if the AD3 includes the "C", "I" or "Q" version of the Xilinx Spartan-7 FPGA? The part number of the FPGA includes a last letter that identifies whether its an commercial, industrial or expanded version of the FPGA. Link to comment Share on other sites More sharing options...
0 attila Posted February 6 Share Posted February 6 Hi @Ronnie I don't see is marked on the IC but probably C are loaded. I and Q are listed as substitute. On 1/29/2024 at 12:43 PM, attila said: 85*C If you are concerned about temperature, you could glue a heatsink to the FPGA. Note that this voids the warranty. Link to comment Share on other sites More sharing options...
0 Ronnie Posted February 6 Author Share Posted February 6 Thanks, we are working on a heatsink experiment. Do you guys have any plans to support an "industrial" version of your product? We are deploying a prototype that includes your product in the Oil and Gas sector, but that means its running outdoors in an explosion proof enclosure. Link to comment Share on other sites More sharing options...
0 attila Posted February 7 Share Posted February 7 Hi @Ronnie Unfortunately no. Industrial grade equipment would require not only the FPGA but all the components and the entire device certified for this. Link to comment Share on other sites More sharing options...
Question
Ronnie
Hello,
Is there is a maximum board temperature that causes the AD3 to shut down? Example: 72c? Does the AD2 have any such max temp restrictions?
Link to comment
Share on other sites
9 answers to this question
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now