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I used a PIC16C55/57 as an 8-bit comparator. 8-position DIP switch tied to port C with appropriate pullup resistors, and the 8 address bits to port B. The software compares the two, and when they are equal, it outputs a pulse from port A. I have a STROBE bit tied to one pin on port A, so it only...

A superconductor! But seriously, I use them in places where I have a spot on a circuit board, and, due to a reconfiguration, I need a short instead. They are also used when a design might be changed in production. If your autoinsert machine is already set up for placing chip resistors, then it's...

I glanced at the data sheets, and noticed that the common mode range is quite different between the two parts. The OPA2277 specifies (V+)-2V to (V-)+2V The LT1013 specifies (V+)-1.5V to (V-) If something in your circuit puts a voltage outside the range on the inputs, no telling what exactly...