I have a board which is currently using several LT1491's, specifically for their ability to tolerate up to 44 volts above V+ at the inputs. The down side, is that they are expensive, and frequently out of stock. I'm curious is anyone out there is familiar with a similar device which might be a bit cheaper. I'm using this on heavy equipment with a 24v system. Commonly the LT1491 has a V+ of 5v, however the inputs could momentarily be as high as
28v (due to miswires in electrical assembly).Any ideas?
Thanks,
Chris