In a normalsituation, users should not supply the switches with voltage higher than 30V. There should be 5V voltage fed to the electrical part below 5V. For this switch device, it is feasible to have two supplies. However, the voltage should not exceed 20V. If you are using dual power supplies, you should attach at least 4.5V. A DIFFERENTIAL MULTIPLEXER analog IC is integrated into the board.
DG407C/W+ Features
DG407C/W+ Applications
There are a lot of Maxim Integrated DG407C/W+ Analog Switches & Multiplexers ICs applications.
ATM
Battery Powered Instruments
SDH/SONET multiplexers
Cell phones
Voice over IP/DSL – Integrated Access Devices, Smart