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AD5383-5 maximum current that can be supplied by every voltage output?

Question asked by Pep on Jun 7, 2012
Latest reply on Jun 8, 2012 by KenK



I'm new here so I introduce myself. My name is Pep Canyelles, an electrical and electronic engineer working at the moment in a research institute.


Currently we are designing a PCB board to control an array opf 64 LD VCSELs as part of a Marie Curie fellowship.


To do so we are going to use the AD5383-5 14 bits 32 outputs 100-Lead LQFP package.


Page 4 of the datasheet gives current specs for the given model in output characteristics.


I would like to ask if the short circuit current of 40mA is the maximum current that the voltage output can provide or if it is just the 1mA marked as load current.


If the answer is the first supposition, 40mA, then that would mean that 32 x 40 mA = 1.28 A in just a single chip so I guess that we would need to apply cooling and considering this feature very seriously.


Many thanks for your time, greetings