When I power the ADCMP396 with +5V all of the input pins show a voltage of anywhere from 0.8V-2.5V. I have only connected VCC, GND, and a DMM to the input pins. The Vref pin shows a very stable 1V. I have tried this on 3 separate ICs with similar results. Is this normal behavior? The reason it is a problem is when I connect a 0V signal to the input, the input shows whatever voltage I measure with no input connected. The input is coming from a diode/cap rectifying circuit.