Most ADI materials can be named using this table, which includes prefix, device number, temperature, packaging, and lead-free identification. Composed of packaging form,One of the difficulties is to remember which naming symbols are for which temperature and encapsulation, so I have also compiled them in a table, which can solve more problems.AD represents the prefix of ADI, 694 is the device code, and it should be noted that this position is empty or not. J represents temperature, which corresponds to 0-70 ° C in the table N represents the package of dual in-line insertion. Z is compliant with the rohs instruction.