MAX5452EUB+

Overview

The MAX5452EUB+ is a dual digital potentiometer IC from the MAX5450–MAX5455 family, manufactured by Analog Devices (Maxim Integrated). It features two independent 2-terminal variable resistors, each with 256 tap positions controlled via an up/down interface. The device operates on a single supply voltage ranging from +2.7V to +5.5V and consumes an ultra-low supply current of 0.1µA. Each resistor network provides a nominal resistance of 50kΩ with a linear taper. The unit is housed in a compact 10-pin µMAX package and is guaranteed to operate within the extended industrial temperature range of -40°C to +85°C.

Feature Summary

• Dual 2-terminal variable resistors with 256 discrete tap positions
• Up/Down control interface for glitchless switching between taps
• Ultra-low supply current consumption of 0.1µA at VDD = 2.7V
• Power-on reset circuitry initializes wipers to midscale (position 127)
• Low end-to-end temperature coefficient of 35ppm/°C

Applications

• Mechanical potentiometer replacement
• Low-drift programmable-gain amplifiers
• Volume control circuits
• LCD screen adjustment
• Adjustable voltage references

Procurement Notes

Verify that the component matches the specific 50kΩ resistance value and 10-pin µMAX package configuration required for the design. Confirm compliance with RoHS directives as indicated by the '+' suffix in the part number. Ensure the operating environment stays within the specified -40°C to +85°C temperature range to maintain guaranteed performance specifications.

Selection Notes

Select this model when a dual-channel digital variable resistor is needed rather than a three-terminal potentiometer. The MAX5452 variant internally connects the wiper to the high terminal, configuring it specifically for variable resistance applications. Compare against MAX5450 (10kΩ) or MAX5454 (100kΩ) if different resistance values are required, or consider the MAX5453 if three-terminal potentiometer functionality is necessary instead.

Part Context

This component belongs to the MAX5450–MAX5455 series of dual digital potentiometers. While the MAX5451, MAX5453, and MAX5455 utilize a 14-pin TSSOP package and function as three-terminal potentiometers, the MAX5452 specifically uses a 10-pin µMAX package and functions as two 2-terminal variable resistors. All devices in the family share the same core architecture, interface logic, and low-power characteristics.

Replacement Considerations

Direct functional substitutes within the same package include the MAX5450EUB+ (10kΩ) and MAX5454EUB+ (100kΩ), provided the resistance value difference is acceptable for the application. For designs requiring three-terminal potentiometer operation, the MAX5453EUD+ serves as a pin-compatible alternative in the 14-pin TSSOP package.