Q
Please provide the thermal resistance junction to case for this device and also the maximum operating junction temperature.
A
The AD664 is quite an old product for which is difficult to obtain any sort of information. As I could not find anything I contacted our Assembly department. Please, find their inputs below. I hope it helps. The AD644SD-BIP is a 28 lead SBDIP. The only thing I can see that comes close is the CERDIP in ADI0121:
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