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