The full specified input common-mode voltage range may be applied to the inputs while the LMP8645 power is off (V+ = 0 V). When the LMP8640 is powered off, the R_IN resistors are disconnected internally by MOSFETS and the leakage currents are very low (sub µA).

The 6-V input differential limit still applies, so at no time should the two inputs be more than 6-V apart. There are also Zener clamps on the inputs to ground, so do not exceed the input limits specified in the Section 6.1.