The MAX4735 quad-SPDT switch routes audio signals in portable applications. Each channel has a 0.31Ω typical on-resistance, allowing the MAX4735 to drive 8Ω loudspeakers with less than 0.02% distortion. The MAX4735 is configured as a quad-SPDT switch with two common control inputs. Each digital input controls two pairs of SPDT switches. The switches are fully bidirectional, allowing both multiplexing and demultiplexing operation. Break-before-make operation is guaranteed. The device operates from a +1.6V to +3.6V supply and over the extended -40°C to +85°C temperature range. It is offered in both 16-pin 3mm x 3mm TQFN and TSSOP packages. Applications * Cell Phones * Digital Still Cameras * MP3 Players * PDAs and Palmtop Devices * Low 0.31Ω RON * 0.06Ω On-Resistance Flatness * Excellent 0.015Ω On-Resistance Matching * Low 0.02% THD into 8Ω * Low 0.015% THD into 32Ω * Audio Signal Routing * Space-Saving, 3mm x 3mm TQFN Package * 1.8V Logic Compatible