ADG508FBRN

The ADG508FBRN is a CMOS analog multiplexer from Analog Devices, featuring eight single channels. This device provides robust fault protection, safeguarding both the device and the signal source during overvoltage events or power loss. It can withstand continuous input voltages ranging from -40 V to +55 V.

Key electrical characteristics include a typical on-resistance of 270 Ω, fast switching times with a maximum tON of 230 ns and a maximum tOFF of 130 ns, and low power dissipation of 3.3 mW maximum. The multiplexer is designed with break-before-make construction and is compatible with TTL and CMOS logic levels.

During fault conditions, such as power supply loss, the multiplexer's channels turn off, allowing only a few nanoamperes of leakage current to flow. This feature protects connected circuitry and signal sources. The ADG508F switches one of eight inputs to a common output, controlled by 3-bit binary address lines (A0, A1, A2) and an enable input (EN).

This multiplexer is suitable for existing multiplexer applications, both fault-protected and non-fault-protected, as well as new designs requiring reliable multiplexer functions.