What are the system benefits of overvoltage fault protection with secondary supplies?

Q

What are the system benefits of overvoltage fault protection with secondary
supplies?

A

Powering the switch with a higher supply voltage means it can operate in the
lower, flatter RON region of the device. This optimizes distortion and noise
performance. The secondary supply voltages can be set to protect downstream
components such as Amplifiers, ADCs, or DACs. The overvoltage fault protected
switches will clamp a fault to the corresponding secondary supply. The switch
can also withstand up to +/-55V at its input while still protecting downstream
components to the secondary supply levels.