The recommended operating voltage range for the DG408CY+T is 4.5V to 30V, although it can operate up to 36V with reduced performance.
To ensure correct switching with a low-voltage control signal, use a voltage translator or level shifter to boost the control signal to a level compatible with the DG408CY+T's input voltage range.
The maximum current rating for the DG408CY+T's analog switches is 30mA per channel, although this can be limited by the power dissipation of the device.
To minimize power consumption, use the lowest possible supply voltage, reduce the switching frequency, and consider using the device's shutdown mode when not in use.
Yes, the DG408CY+T is rated for operation up to 125°C, but ensure that the device is properly heat-sinked and that the maximum power dissipation is not exceeded.