We are having some issues using the AD5272. We seem to get spurious resets on the device which then forces the setting to midscale. We at first suspected the RESET input which was originally driven by power supply monitor device. We now have it shorted to VDD. This seemed to solve the first problem where it appeared some minor power supply noise was causing the reset. Now it resets when our unit is exposed to fairly low level vibration. Is there anything about the chip that might make is susceptible to vibration in particular. As for power supply noise we implemented the recommended decoupling on the VDD input.