Hello. I have a wierd ESD problem: I am using a OPA2344 in a two-stage circuit to convert 0-.33VAC 60Hz from a current transformer to 0-5VDC for an ADC. If I walk around a little to build up a tiny charge and touch the circuit input, the first stage inverting amplifier op-amp minus input jumps to a clean .5VDC-.7VDC voltage, and the output goes to the rail. This stays until the curciut is unpowered then powered-up again. It doesn't matter if there is a signal at the input or not. I never heard of such a thing, but I'm seeing it. Has anyone else seen this sort of thing? Is there a way to prevent this? (Humans touching the input terminals cannot be prevented.)