MAX5460EXK+T

Overview

The MAX5460EXK+T is a single-channel, 100kΩ linear-taper digital potentiometer featuring 32 programmable wiper taps. 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 (CS/U/D) for digital control. Key electrical characteristics include ±1 LSB differential nonlinearity, ±0.5 LSB integral nonlinearity, and a 35 ppm/°C temperature coefficient. It is housed in a space-saving 5-pin SC-70 package.

Feature Summary

• 32-Tap Linear Resistance: Provides precise digital adjustment with 100kΩ end-to-end resistance.
• Low Power Consumption: Draws only 25µA active current and 1µA standby current.
• Glitchless Switching: Ensures stable operation during tap transitions without output glitches.
• Power-On Reset: Automatically sets the wiper position to midscale upon power-up.

Applications

• LCD Screen Contrast Adjustment
• Volume Control Systems
• Mechanical Potentiometer Replacement
• Gain Adjustment in Amplifier Circuits

Procurement Notes

Verify the component authenticity by checking the top marking ACA against the datasheet ordering information. Confirm the package type is SC-70-5 and the resistance value is 100kΩ. Ensure the operating environment stays within the specified -40°C to +85°C temperature range and supply voltage limits of 2.7V to 5.5V.

Selection Notes

Select the MAX5460EXK+T when a 100kΩ variable resistance is required in a compact SC-70 footprint. Choose this model over the MAX5463 or MAX5466 if higher resistance values are needed for specific impedance matching or gain setting applications. Ensure the design supports the 2-wire serial interface timing requirements for CS and U/D signals.

Part Context

This component belongs to the MAX5460–MAX5468 FleaPoT family of digital potentiometers. While other members offer 10kΩ or 50kΩ options, the MAX5460 specifically provides the 100kΩ variant in the 5-pin SC-70 package. It serves as a direct digital replacement for mechanical potentiometers in space-constrained designs.

Replacement Considerations

Direct pin-compatible substitutes within the same family include the MAX5463EXK+T (50kΩ) and MAX5466EUK+T (10kΩ), though resistance values differ. Cross-family replacements require verification of interface compatibility and package dimensions.