Quad Beyond-the-Rails -15V to +35V Analog Switch

Industry's First Quad SPST Beyond-the-Rails Switch Simplifies Power Supplies

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The MAX14777 quad SPST switch supports analog signals above and below the rails with a single 3.0V to 5.5V supply. The device features a selectable -15V/+35V or -15V/+15V analog signal range for all switches. Each switch has a separate control input to allow independent switching, making the device an alternative to opto-relays in applications that do not need galvanic isolation.

The IC features 10Ω (max) on-resistance, and 9mΩ (typ) RON flatness, along with a low 50nA (max at +85°C) on-leakage. For maximum signal integrity, the device keeps this performance over the entire common-mode voltage range. Each switch can carry up to 60mA (max) of continuous current in either direction.

The MAX14777 is available in a 20-pin (4mm x 4mm) TQFN package and is specified over the -40°C to +105°C temperature range.

MAX14777: Functional Diagram MAX14777: Functional Diagram Enlarge+

Key Features

  • Simple, Flexible Board Design
    • -15V/+35V Beyond-the-Rails Signal Range from a Single 3.0V to 5.5V Supply
    • Selectable -15V/+15V Signal Range for Lower Supply Current
    • 60mA Maximum Current through Each Switch
    • 1.62V to 5.5V Logic Interface
  • High-Performance 10Ω RON (max)
  • 150mΩ (max) RON Flatness
  • ±50nA (max) On-Leakage at TA = +85°C
  • Saves Board Space
    • Small 20-Pin TQFN Package (4mm x 4mm)
  • -40°C to +105°C Operating Temperature Range


  • 4–20mA Switching
  • ATE Systems
  • Industrial Measurement Systems
  • Instrumentation Systems

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Tools & Models

  • MAX14777 IBIS Model
  • Product Reliability Reports: MAX14777.pdf 
    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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