MAX5463EXK+T

Overview

The MAX5463EXK+T is a 50kΩ linear-taper digital potentiometer featuring 32 tap points, housed in a 5-pin SC70 package. It operates on a single supply voltage ranging from +2.7V to +5.5V with an active supply current of 25µA and standby current of 1µA. The device utilizes a 2-wire serial interface for wiper control and includes power-on reset functionality that sets the wiper to midscale upon initialization. Key electrical characteristics include a resistance temperature coefficient of 35ppm/°C and glitchless switching between resistor taps.

Feature Summary

• 50kΩ end-to-end resistance with 32 discrete tap positions
• Ultra-low power consumption: 25µA active, 1µA standby
• Glitchless switching between resistor taps
• Power-on reset (POR) initializes wiper to midscale

Applications

• LCD screen contrast adjustment
• Volume control circuits
• Mechanical potentiometer replacement
• Adjustable gain amplifier configurations
• Line impedance matching

Procurement Notes

Verify component authenticity through authorized Analog Devices or Maxim Integrated distributors. Confirm RoHS compliance status (+ suffix indicates lead-free). Ensure the SC70-5 package matches PCB footprint requirements. Check datasheet revisions for any pinout or electrical specification updates prior to final design approval.

Selection Notes

Select this part when a 50kΩ variable resistance is required in a space-constrained design. The 5-pin SC70 package is suitable for applications where only two terminals (H and L) are needed, as the internal low terminal is grounded. For potentiometer configurations requiring a separate wiper output, consider the 6-pin variants like the MAX5465EXT+T instead.

Part Context

This component belongs to the MAX5460–MAX5468 FleaPoT family of digital potentiometers. While sharing identical control interfaces and power specifications, the family differentiates by resistance value (10kΩ, 50kΩ, 100kΩ) and terminal configuration. The MAX5463 specifically provides the 50kΩ option in the compact 5-pin SC70 form factor.

Replacement Considerations

Direct functional substitutes within the same family include the MAX5464EXT+T (6-pin SC70, 50kΩ) and MAX5465EXT+T (6-pin SC70, 50kΩ potentiometer config). Cross-family replacements require verifying interface compatibility and resistance tolerance.