MAX5402EUA Digital Potentiometer Equivalent & Substitute Parts

Part Overview

The MAX5402EUA is a digital potentiometer IC from Analog Devices Inc./Maxim Integrated, classified as a Data Acquisition component. It features a 10kΩ resistance network with 256 taps, single circuit configuration, and SPI interface for digital control. The device operates across a 2.7V to 5.5V supply range and is housed in an 8-uMAX/uSOP surface mount package.

The MAX5402EUA is currently listed as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

MAX5402EUA

Analog Devices Inc./Maxim IntegratedIn Stock: 1719MAX5402EUA Datasheet

Current PartRFQ

MAX5402EUA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1978MAX5402EUA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MAX5402EUA is determined by strict equivalence across the following critical parameters:

• Resistance value: 10kΩ
• Number of taps: 256
• Circuit configuration: Single circuit
• Interface protocol: SPI
• Supply voltage range: 2.7V ~ 5.5V
• Memory type: Volatile
• Taper characteristic: Linear
• Operating temperature range: -40°C ~ 85°C
• Package type: 8-uMAX/uSOP
• Mounting method: Surface Mount

The MAX5402EUA+ qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility. The primary distinction between these parts is product status and packaging format, not functional or electrical parameters.

Parameter Comparison

Engineering Selection Recommendations

The MAX5402EUA+ is the direct functional equivalent to the MAX5402EUA. Both parts share identical electrical and mechanical specifications, ensuring pin-for-pin compatibility and equivalent circuit performance.

The MAX5402EUA+ offers two significant advantages for new designs and ongoing production:

1. Active product status ensures long-term availability and manufacturer support
2. ROHS3 compliance satisfies regulatory requirements for electronics manufacturing and distribution in restricted substance environments

The MAX5402EUA remains non-compliant with RoHS3 standards. Selection between these parts should be based on supply chain requirements, regulatory compliance mandates, and production timelines. Both parts are functionally interchangeable within the same circuit design.

Frequently Asked Questions (FAQ)

Q: Can MAX5402EUA+ replace MAX5402EUA in existing designs?

A: Yes. The MAX5402EUA+ is electrically and mechanically identical to the MAX5402EUA. No circuit modifications are required for substitution. Both parts feature the same 10kΩ resistance, 256-tap configuration, SPI interface, and 8-uMAX/uSOP package.

Q: What is the difference between MAX5402EUA and MAX5402EUA+?

A: The primary differences are product status and RoHS compliance. The MAX5402EUA is obsolete and RoHS non-compliant. The MAX5402EUA+ is active and ROHS3 compliant. Packaging format differs (standard versus tube), but electrical specifications are identical.

Q: Are there any package compatibility concerns?

A: No. Both parts use the 8-TSSOP, 8-MSOP package with 0.118" width and 3.00mm height. PCB footprints and assembly processes are identical.

Q: Does the MAX5402EUA+ require different firmware or software configuration?

A: No. The SPI interface, command structure, and register definitions are identical. Existing firmware and software implementations require no modification.

Q: What supply voltage range do these parts support?

A: Both the MAX5402EUA and MAX5402EUA+ operate across 2.7V to 5.5V. They are compatible with 3.3V and 5V logic systems.

Q: Are there temperature range limitations?

A: Both parts operate across -40°C to 85°C. This range covers industrial and commercial temperature specifications.