I've done some searching through the datasheet and I think I have found the answer to the following questions below but I would like a second opinion. The LM124/LM224 does not show ESD diodes for protection in the schematic below, but in the datasheet ESD tolerance is listed as a max of 250V. Where is this ESD protection from?
1) Are there any ESD protection diodes or other protective devices on the output connections?
2) If yes, what are their characteristics?
3) If no, what is the path that ESD current follows?