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MAX4851, MAX4851H

3.5Ω/7Ω Quad SPST Switches with Over-Rail Signal Handling

Product Details

Key Features

Simplified Block Diagram

Technical Docs

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Key Features

  • USB 2.0 Full Speed (12Mbps) and USB 1.1 Signal Switching
  • Switch Signals Greater than VCC
  • +2V to +5.5V Supply Range
  • 3.5Ω/7Ω On-Resistance
  • 30pF On-Capacitance (7Ω Switch)
  • 150MHz -3dB Bandwidth
  • 1.8V Logic Compatibility
  • Low Supply Current
    • 0.01µA (MAX4853)
    • 5µA (MAX4851)
    • 10µA (MAX4851H/MAX4853H)
  • Low 0.01nA Leakage Current
  • Available in a Space-Saving 3mm x 3mm, 16-Pin TQFN Package

Applications/Uses

  • Audio Signal Routing
  • Cell Phones
  • Notebook Computers
  • PDAs and Other Handheld Devices
  • USB Switching

Description

The MAX4851/MAX4851H/MAX4853/MAX4853H family of quad single-pole/single-throw (SPST) switches operates from a single +2V to +5.5V supply and can handle signals greater than the supply rail. These switches feature low 3.5Ω on-resistance with 40pF on-capacitance or 7Ω on-resistance with 30pF on-capacitance, making them ideal for switching audio and data signals.

The MAX4851/MAX4851H are configured with four SPST switches and feature a comparator for headphone detection or mute/send key functions. The MAX4853/MAX4853H have four SPST switches but do not include a comparator.

For over-rail applications, these devices offer either the pass-through or high-impedance option. For the MAX4851/MAX4853, signals greater than the positive supply (up to 5.5V) pass through the switch without distortion. For the MAX4851H/MAX4853H, the switch input becomes high impedance when the input signal exceeds the supply rail.

The MAX4851/MAX4851H/MAX4853/MAX4853H are available in the space-saving, 16-pin, 3mm x 3mm thin QFN package and operate over the -40°C to +85°C extended temperature range.

Simplified Block Diagram

MAX4851, MAX4851H, MAX4853, MAX4853H: Block Diagram MAX4851, MAX4851H, MAX4853, MAX4853H: Block Diagram Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.