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Maxim's Beyond-the-Rails switches and multiplexers integrate bias circuitry to enable switching high-voltage (±25V) signals while operating from a low-voltage (3.0V to 5.5V) single supply. Our family of Beyond-the-Rails products feature low RON, flat RON, low leakage, and fast bandwidth speeds.

Beyond the rails

Common Applications for Beyond-the-Rails Switches and Multiplexers

A switch or multiplexer that can operate beyond the rails can save costs and simplify the design of products that switch relatively high-voltage analog and digital signals by eliminating the need for high-voltage positive and negative power rails. Only a standard 3.3V or 5V power supply is required. These products are ideal for applications such as audio and data multiplexing, interface termination, switching, photoMOS switch replacement, industrial measurement, and instrumentation systems.

Low-Voltage Beyond-the-Rails Switches and Multiplexers 
Mid-Voltage Beyond-the-Rails Switches and Multiplexers 

Technical Documentation

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Technical Documentation

Technical Documents

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Part Number Title Document Type Date

MAXREFDES179# Reference Design Board

MAXREFDES179# Reference Design Board

The MAXREFDES179 reference design is a complete Universal Serial Bus (USB) type-C PD solution fe...

MAXREFDES9002: C-source Reference for Operating the DS28E18 from Cortex-M4 GPIO Pins

Extend an I2C and SPI interface using the DS28E18 with included M4 compatible 1-Wire API and C-d...

MAXREFDES1258: 1200W DC-DC Buck Converter Using the MAX15157B

The MAXREFDES1258 is a 1200W, 12V 4-phase DC-DC buck converter that can deliver up to 100A load ...

MAXREFDES1275: 1A,3-Channel LED Driver in Buck Configuration using MAX20050 and its dimming control using MAX32630FTHR

The MAX20050 is a high-brightness LED driver for automotive exterior lighting applications.

Remote Monitoring System Sends Email via SMS

Remote monitoring of temperature and an analogue signal via E-mails. On meeting certain alarm co...

MAXREFDES1089: Miniature, 12V/250mA, Synchronous, No-Opto Flyback DC-DC Converter with 91.7% Efficiency

Due to its simplicity and low cost, the flyback converter is the preferred choice for low-to-med...

MAXREFDES1091: Miniature, 12V/250mA, No-Opto Flyback DC-DC Converter with 91% Efficiency Using MAX17690 Reference Design

Due to its simplicity and low cost, the flyback converter is the preferred choice for low-to-med...

MAXREFDES1171: Low-Power Fault Indicators

The MAXREFDES1171 uses Maxim® low-power chips for power grid fault indicators based on the low-p...

MAXREFDES1168: 7V/200mA or 5V/100mA, Iso-Buck DC-DC Converter Using the MAX17681A

The MAX17681/MAX17681A is a high-voltage, highefficiency, iso-buck DC-DC converter designed to p...

MAXREFDES1099: Miniature, 24V/500mA, No-Opto Flyback DC-DC Converter with 93% Efficiency Using the MAX17690

Due to its simplicity and low cost, the flyback converter is the preferred choice for low-to-med...

MAXREFDES1141: 2.4W DC-DC Flyback Converter Using the MAX17596

The MAX17596 is a peak-current-mode controller for designing wide input-voltage flyback regulato...

MAXREFDES1104: Miniature, 5V/2A, Synchronous, No-Opto Flyback DC-DC Converter with 90% Efficiency Using MAX17690 and MAX17606

Due to its simplicity and low cost, the flyback converter is the preferred choice for low-to-med...

MAXREFDES96#: Single-Battery Charger and Fuel Gauge with Boost for Arduino Platforms

The MAXREFDES96# is an Arduino Uno R3-compatible board that provides battery charge, boost, and ...

MAXREFDES1037: 72W Offline Flyback Converter

The MAX17595 is a peak-current-mode controller for designing wide input-voltage flyback regulato...