MAX5414EUD

Overview

The MAX5414EUD is a dual linear-taper digital potentiometer from Analog Devices/Maxim Integrated, housed in a 14-pin TSSOP package. It operates on a single +2.7V to +5.5V supply with an ultra-low 0.1µA supply current. Each device contains two independent 3-terminal potentiometers featuring 256 tap positions controlled via a 3-wire SPI-compatible interface. The end-to-end resistance is nominally 50kΩ with a temperature coefficient of 35ppm/°C. Key features include glitchless switching between taps and a power-on reset that sets the wiper to midscale.

Feature Summary

• Dual 3-terminal potentiometers with 256 tap positions each
• Ultra-low 0.1µA supply current for battery-powered applications
• Glitchless switching between resistor taps prevents output transients
• Power-on reset (POR) initializes wipers to midscale position

Applications

• Low-drift programmable gain amplifier (PGA)
• Mechanical potentiometer replacement
• Adjustable voltage reference circuits
• Volume control and LCD screen adjustment

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for specific ordering suffixes that may indicate tape-and-reel packaging versus tube quantities. Ensure the supplier provides valid traceability documentation for industrial-grade components.

Selection Notes

Select the MAX5414EUD when a 50kΩ nominal resistance is required. Choose this model over the MAX5413 (10kΩ) or MAX5415 (100kΩ) based on circuit impedance requirements. Verify that the application supports volatile memory behavior, as wiper positions are not retained after power loss.

Part Context

This component belongs to the MAX5413/MAX5414/MAX5415 family of dual, low-drift digital potentiometers. All variants share identical pinouts, interfaces, and electrical characteristics except for the nominal end-to-end resistance value. The EUD suffix denotes the extended industrial temperature range (-40°C to +85°C) and the 14-pin TSSOP package type.

Replacement Considerations

Direct functional substitutes within the same package and specification profile include the MAX5413EUD (10kΩ) and MAX5415EUD (100kΩ). Cross-family replacements require verification of interface compatibility and resistance tolerance.