MAX5487ETE#TG16

Overview

The MAX5487ETE#TG16 is a dual, linear-taper digital potentiometer featuring a 3-wire SPI-compatible serial interface. It provides 256 tap positions with an end-to-end resistance of 10kΩ and operates from a single +2.7V to +5.25V supply. The device includes nonvolatile EEPROM memory that retains wiper positions upon power-up or via interface commands. Key electrical characteristics include ±1 LSB INL, ±0.5 LSB DNL in voltage-divider mode, and a low 35ppm/°C temperature coefficient for the end-to-end resistor.

Feature Summary

• Dual-channel architecture with 256 programmable tap positions per channel
• Nonvolatile EEPROM storage ensures wiper position recall after power loss
• SPI-compatible 3-wire serial interface (SCLK, DIN, CS)
• Low power consumption with standby current of 0.5µA typical

Applications

• LCD screen contrast and bias adjustment
• Audio volume control circuits
• Mechanical potentiometer replacement in embedded systems
• Programmable gain amplifiers requiring low drift
• Adjustable voltage references using feedback networks

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors. Confirm RoHS compliance status as indicated by the '+' suffix in the part number. Ensure ESD protection protocols are followed during handling due to the sensitive CMOS input structure. Check for specific manufacturing lot dates if long-term reliability data is required for the application.

Selection Notes

Select this model when a 10kΩ resistance value is required; the MAX5488 offers 50kΩ and the MAX5494 provides higher resolution. The TQFN package is suitable for space-constrained PCB layouts. Ensure the system voltage remains within the 2.7V to 5.25V range to maintain specified performance parameters and avoid exceeding absolute maximum ratings.

Part Context

This component belongs to the MAX5487/MAX5488/MAX5489 family of dual digital potentiometers. The 'ETE' designation specifically identifies the 16-pin TQFN package variant with extended temperature range capabilities (-40°C to +85°C). The '#TG16' suffix typically denotes tape-and-reel packaging configuration for automated assembly processes.

Replacement Considerations

Direct pin-compatible replacements within the same family include the MAX5488ETE (50kΩ) and MAX5489ETE (100kΩ) for different resistance requirements. For higher resolution needs, consider the MAX5494 series which offers 1024 taps. Verify that any substitute maintains the same SPI protocol compatibility and nonvolatile memory functionality.