Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch

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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.
MAX4735: Typical Application Circuit MAX4735: Typical Application Circuit Enlarge+

Key Features

  • 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


  • Cell Phones
  • Digital Still Cameras
  • MP3 Players
  • PDAs and Palmtop Devices
Request Reliability Report for: MAX4735 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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