I noticed that the integrated circuit on the AD9914 evaluation board gets rather hot. Should there not be a heat sink mounted on it?
3.3 V rail @ 610 mA
1.8 V rail @ 83 mA
Power down mode:
3.3 V rail @ 164 mA
1.8 V rail @ 26 mA
Thank you for your patience.
I was able to bench in the lab and here is the result:
3.3V rail @610mA
1.8V rail @300mA
Package Temp is 42°C
On the boards that we tested, these are typical values of the set-up condition so no need to worry.
Also, the AD9914 has an exposed pad which is used for thermal relief purposes.
If you want to know more about not violating the absolute maximum ratings, this article is helpful:
Absolute Maximum ratings and Thermal Resistances
Hope this helps.
The AD9914 has an exposed pad (EPAD) at the back of the chip. This is soldered to the ground and the main purpose is for thermal relief.
Let me check first in the lab regarding the chip's temperature. I'll get back to you as soon as possible.
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