MAX5413EUD+T

Overview

The MAX5413EUD+T is a dual linear taper digital potentiometer from the Analog Devices/Maxim Integrated MAX5413 family. It integrates two independent 3-terminal potentiometers, each featuring 256 tap positions controlled via a 3-wire SPI-compatible serial interface. The device operates on a single supply voltage ranging from +2.7V to +5.5V with an ultra-low supply current of 0.1µA. Key electrical characteristics include a nominal end-to-end temperature coefficient of 35ppm/°C and a ratiometric temperature coefficient of 5ppm/°C. The unit provides glitchless switching between resistor taps and includes a power-on reset function that initializes the wiper to the midscale position.

Feature Summary

• Dual 3-terminal potentiometers with 256 discrete tap positions per channel
• Ultra-low 0.1µA supply current for battery-powered applications
• Glitchless switching between resistor taps ensures stable operation
• Power-on reset (POR) sets wiper to midscale (position 128) at startup

Applications

• Mechanical potentiometer replacement in embedded systems
• Low-drift programmable gain amplifier (PGA) configurations
• Adjustable voltage reference circuits
• Programmable filters, delays, and time constant adjustments

Procurement Notes

Verify the specific resistance value associated with the 'MAX5413' prefix, which corresponds to 10kΩ, as distinct variants exist within the family. Confirm the '+T' suffix indicates tape-and-reel packaging suitable for automated assembly. Ensure compatibility with the required 3-wire serial interface protocol before procurement.

Selection Notes

Select this component when low power consumption and high resolution are critical. The 10kΩ resistance value of the MAX5413 variant suits moderate impedance applications. Consider the MAX5414 or MAX5415 if higher resistance values (50kΩ or 100kΩ) are required for the specific circuit design.

Part Context

This part belongs to the MAX5413/MAX5414/MAX5415 family of dual digital potentiometers. While electrically similar regarding control logic and package, the family members differ primarily in their nominal end-to-end resistance values: 10kΩ for MAX5413, 50kΩ for MAX5414, and 100kΩ for MAX5415.

Replacement Considerations

Direct substitutes within the same family include MAX5414EUD+T (50kΩ) and MAX5415EUD+T (100kΩ). Verify that the target application can accommodate the different resistance values if substituting between these family members.