MAX5463EXK-T

Overview

The MAX5463EXK-T is a single-channel digital potentiometer featuring 32-tap linear resistance adjustment. It offers a nominal resistance of 50kΩ with a tolerance of ±25% and a temperature coefficient of 35ppm/°C. The device operates on a single supply voltage ranging from 2.7V to 5.5V, consuming only 24µA of supply current. It utilizes a 2-wire serial interface for control and includes power-on reset functionality that defaults the wiper to midscale. The component is housed in an SC-70-5 surface-mount package.

Feature Summary

• Single-potentiometer configuration with 32 discrete taps
• Ultra-low supply current consumption of 24µA
• Glitchless switching between resistor tap positions
• Power-on reset initializes wiper to midscale position

Applications

• LCD screen brightness or contrast adjustment
• Volume control in audio circuits
• Replacement for mechanical potentiometers
• Gain adjustment in signal conditioning stages
• Line impedance matching networks

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing. Confirm the manufacturer designation as Analog Devices Inc. or Maxim Integrated, as both names appear in public records for this component family. Ensure the orderable part number matches the exact electrical specifications required for the design.

Selection Notes

Select this component if a 50kΩ resistance value is required; other variants in the MAX546x family offer 10kΩ or 100kΩ options. The SC-70-5 package is suitable for space-constrained designs. Verify that the volatile memory type meets system requirements, as settings are lost upon power loss. Ensure the 2-wire serial interface is compatible with the host controller's communication protocol.

Part Context

This part belongs to the MAX5460–MAX5468 FleaPoT series of digital potentiometers. These devices function similarly to mechanical potentiometers but are controlled digitally. The MAX5463 variant specifically provides the 50kΩ resistance option within this family, which also includes 10kΩ and 100kΩ versions.

Replacement Considerations

Publicly available substitute part numbers are not confirmed in the provided documentation. Cross-reference with other MAX546x family members (e.g., MAX5464EXK-T) only if resistance values differ. No direct equivalent part numbers are listed in the source material.