0.75Ω, Dual SPDT Audio Switch with Integrated Comparators

The MAX4855 dual, single-pole/double-throw (SPDT) switch operates from a single +2V to +5.5V supply and features rail-to-rail signal handling. The MAX4855 has low on-resistance (0.75Ω) with a +3V supply making it ideal for audio switching applications in portable devices. The device also integrates two internal comparators that can be used for headphone detection or mute/send key functions.

The MAX4855 is available in the space-saving (3mm x 3mm), 16-pin thin QFN package and operates over the extended temperature range of -40°C to +85°C.

Applications

* Audio-Signal Routing * Cell Phones * Notebook Computers * PDAs and Other Handheld Devices * Speaker-Headset Switching

* Audio Signal Routing

* 0.75Ω On-Resistance

* 0.18Ω On-Resistance Flatness

* 0.07Ω Channel-to-Channel Matching

* Rail-to-Rail Signal Handling

* 2 Integrated Comparators

* 1.8V Logic Compatible

* 2V to 5.5V Supply Range

* Available in a Space-Saving (3mm x 3mm), 16-Pin TQFN Package