Input circuitry is always active even when the device is disabled. It is recommended to keep a valid voltage level at the input to avoid high current consumption. To help avoid a floating input during disabling, this device has 100-kΩ typical integrated weak dynamic pull-down at the input. When the device is disabled, the dynamic pull-downs are activated for only a short period of time to help drive and keep the floating input low before the device output becomes high impedance. If the input lines will be floated after the device is disabled, it is recommended to keep them at a valid input voltage level using external pull-downs. This feature is ideal for loads of 30 pF or less. If greater capactive loading is present then external pull-downs are recommended. If an external pull-up is required, it should be no larger than 15 kΩ to avoid contention with the 100 kΩ internal pull-down.