General Description
The MAX4991–MAX4994 low on-resistance analog switches operate from a single +1.8V to +5.5V supply. The MAX4991/MAX4993 feature a slow turn-on time to reduce clicks and pops due to coupling capacitors and audio amplifiers with a DC output bias. This feature provides click-and-pop reduction without adding additional parts for existing architectures.

Features
♦ Slow Turn-On for Click-and-Pop Reduction Without Additional Parts
♦ Low 0.3Ω On-Resistance
♦ Low RON Flatness (1mΩ)
♦ Low THD+N: 0.004%
♦ +1.8V to +5.5V Single-Supply Operation
♦ 1.2µA (typ) Supply Current
♦ Space-Saving Packages
    10-Pin UTQFN (1.4mm x 1.8mm x 0.55mm)

Applications
    Speaker Headset Source Switching
    Cellular Phones
    Portable MP3 Players
    Audio Signal Routing