MAX5452EUB

Overview

The MAX5452EUB is a dual digital potentiometer IC manufactured by Analog Devices Inc./Maxim Integrated. It features two independent 50 kOhm resistive elements, each with 256 taps for linear resistance adjustment. The device utilizes an Increment-Decrement (Up/Down) interface for control and operates on a single power supply ranging from 2.7 V to 5.5 V. Key electrical parameters include a typical operating current of 700 nA and a temperature coefficient of 35 ppm/°C. The wiper memory is volatile, requiring external retention if power is lost. It is housed in a compact 10-lead UMAX package suitable for surface-mount applications.

Feature Summary

• Dual-channel architecture with two independent 50 kOhm digital potentiometers
• 256-tap resolution with linear taper for precise analog signal control
• Increment-Decrement serial interface simplifies connection to microcontrollers
• Low power consumption with 700 nA typical operating current

Applications

• Programmable gain amplifiers in instrumentation systems
• Voltage reference trimming and calibration circuits
• Audio volume control and tone adjustment
• Adaptive biasing in sensor interfaces

Procurement Notes

Verify the specific suffix against official documentation to confirm pinout compatibility and environmental ratings. The 'E' designation typically indicates an extended industrial temperature range (-40°C to +85°C). Confirm RoHS compliance status through the manufacturer's latest certification documents before integration into regulated products.

Selection Notes

Select this component when a dual-channel solution is required to save board space compared to single-potentiometer alternatives. Ensure the system design accounts for volatile memory behavior, as wiper positions reset upon power cycling. Verify that the Increment-Decrement interface aligns with the available GPIO pins on the controlling processor, as it requires fewer lines than SPI-based devices.

Part Context

This part belongs to the MAX545x family of dual digital potentiometers. It shares architectural similarities with the MAX5450 and MAX5451 but differs in resistance values and interface types. The UMAX package provides a small footprint advantage over larger TSSOP options while maintaining robust thermal performance for general-purpose electronic designs.

Replacement Considerations

Direct replacements within the same series include the MAX5452EUB+ for lead-free compliance. Cross-family substitutes like the MAX5450 require verification of interface compatibility, as it uses SPI rather than Up/Down control.