I am using amc7820 for a laser application.In that there are 24 amc IC's.Certain AMC ic's are going bad at times and when replaced with a new its working perfectly. These 24 amc's have the same circuit.Is there any particular reason for that?
Also in the amc IC am using,its written AMC7820Y 090512T.What does these numbers represent?
And in one of the AMC's ,OPA1 always got output pin with 5V even with both the inputs at 0V?what can be the reason?This OPA1 is used for laser pump drive with negative feedback.The output of the driver section is having zero current the negative feedback also has 0V.(0.007 to be specific at both inverting and non-inverting pins.). But the output pin has got 5V even when the pin is isolated from rest of the circuits.