I have two questions :-
a) How would I best go about controlling the slew pin in a programmable way rather than with a fixed resistor ?
b) Is the part ITAR controlled.
Principal Hardware Engineer
Apologies for the delayed response to this question, it slipped through the net somehow.
In answer to your questions:
a) A digipot may be the best solution here. There's a selection of digipots available at the link below. The slew pin resistor on the ADM5170 should be between 2k and 10k so a 10k digipot such as the AD5258 may be suitable. The precise part selection will depend on the resolution you require and the method of programming the digipot - I2C, SPI, or up/down control.
Another solution could be to use a bank of resistors selectable via FETs.
b) No, the ADM5170 is not ITAR controlled. It is not controlled at all and has a US export control classification number of EAR99. However, if the end use is military or space/satellite related, it can mean that a de-controlled product now becomes controlled and requires an export license to be shipped.
Hope this helps.
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