MAX5466EUK+T

Overview

The MAX5466EUK+T is a single-channel, linear-taper digital potentiometer featuring 32 adjustable 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 as low as 1µA. The device provides a nominal end-to-end resistance of 10kΩ with a temperature coefficient of 35ppm/°C. Controlled via a 2-wire serial interface (CS and U/D), it includes power-on reset functionality that sets the wiper to midscale upon initialization.

Feature Summary

• Glitchless switching between resistor taps ensures stable operation during adjustments.
• Ultra-low power consumption with 25µA active current and 1µA standby current.
• Compact 5-pin SOT-23 package suitable for space-constrained designs.
• Power-on reset circuitry initializes the wiper position to midscale.

Applications

• LCD screen contrast and bias adjustment
• Volume control in audio circuits
• Mechanical potentiometer replacement
• Adjustable gain settings in amplifier circuits

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for specific ordering suffixes if alternative packaging options are required. Ensure storage conditions adhere to moisture sensitivity levels specified in the datasheet to maintain reliability before soldering.

Selection Notes

Select this component when a 10kΩ linear taper characteristic is required. Verify that the application supports the 2-wire serial interface timing constraints. Consider the 32-tap resolution limits for precision requirements. Ensure the operating voltage range aligns with the system's +2.7V to +5.5V supply rails.

Part Context

This part belongs to the MAX546x FleaPoT family of digital potentiometers. While sharing the same interface and core architecture, other family members offer different resistance values (50kΩ, 100kΩ) or configurations such as variable resistors instead of potentiometers. The MAX5466 specifically defines the 10kΩ variant in a 5-pin SOT-23 package.

Replacement Considerations

Direct pin-compatible replacements within the same series include MAX5467EUT+T (6-pin SOT-23) and MAX5468EUT+T (6-pin SOT-23). Note that these alternatives utilize a 6-pin package rather than the 5-pin SOT-23 form factor of the MAX5466EUK+T.

FAQ

What happens to the wiper position at power-up?

The internal power-on reset circuitry automatically sets the wiper position to midscale when power is applied.

How is the wiper position controlled?

The wiper position is adjusted using a 2-wire serial interface consisting of Chip Select (CS) and Up/Down (U/D) inputs.

Does the device support glitch-free operation?

Yes, the MAX5466EUK+T features glitchless switching between resistor taps to prevent output transients.