MAX5528GUA

Overview

The MAX5528GUA+ is a single-channel, linear-taper digital potentiometer IC featuring 64 taps and non-volatile memory. It operates on a 5V supply with a maximum voltage of 5.5V and consumes 1.5µA of current. The device utilizes a 2-wire serial interface for control. Key electrical parameters include a resistance of 50kΩ, a temperature coefficient of 35 PPM/°C, and a tolerance of 25%. It functions within an extended temperature range of -40°C to +105°C and is housed in an 8-pin uMAX package.

Feature Summary

• Non-volatile storage retains wiper position after power loss
• Single channel with 64 linear-taper tap positions
• Low quiescent current of 1.5µA at 5V operation
• Serial 2-Wire interface for simplified connectivity

Applications

• Programmable gain amplifier circuits
• Voltage reference adjustment
• Sensor biasing and calibration
• Audio volume control systems

Procurement Notes

Verify component status as the product lifecycle is listed as End-of-Life. Confirm availability through authorized distributors or surplus markets. Check RoHS compliance details and ensure the specific suffix matches design requirements. Validate lead times due to potential discontinuation.

Selection Notes

Select this component for applications requiring persistent resistance settings without external battery backup. Ensure the 50kΩ resistance value fits the circuit impedance constraints. Verify that the 2-wire serial protocol aligns with the host microcontroller's available interfaces. Consider the 25% tolerance if precise absolute resistance is critical.

Part Context

This part belongs to the MAX5528 series of one-time programmable digital potentiometers. It is manufactured by Analog Devices / Maxim Integrated. The device integrates EEPROM technology to store the wiper setting, distinguishing it from volatile counterparts that reset to default states upon power cycling.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material. Due to the End-of-Life status, direct pin-to-pin replacements should be verified against updated datasheets from Analog Devices.