MAX5120AEEE+ Equivalent & Substitute Parts

Part Overview

The MAX5120AEEE+ is a 12-bit Digital to Analog Converter (DAC) manufactured by Analog Devices Inc./Maxim Integrated, designed for data acquisition applications requiring voltage output conversion. This component features a single DAC channel with SPI interface, R-2R architecture, and buffered voltage output capability. The part is classified as obsolete, making identification of equivalent and substitute components essential for ongoing system support and new design implementations where legacy compatibility is required.

Substiute Parts

MAX5120AEEE+

Analog Devices Inc./Maxim IntegratedIn Stock: 1269MAX5120AEEE+ Datasheet

Current PartRFQ

MAX5120AEEE+

Analog Devices Inc./Maxim IntegratedIn Stock: 1269MAX5120AEEE+ Datasheet

DirectRFQ

MAX5122AEEE+

Analog Devices Inc./Maxim IntegratedIn Stock: 891MAX5122AEEE+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX5120AEEE+ is determined by strict equivalence across the following critical parameters:

• Resolution & Architecture: 12-bit resolution with R-2R architecture
• Channel Configuration: Single D/A converter
• Output Characteristics: Voltage output with buffering capability
• Interface Protocol: SPI digital interface
• Reference Configuration: Support for both external and internal reference types
• Supply Voltage Requirements: 5V analog and digital supply voltages
• Accuracy Specifications: INL/DNL performance of ±0.5 LSB (Max) and ±1 LSB (Max)
• Thermal Performance: Settling time of 20µs (Typ)
• Package Compatibility: 16-QSOP surface mount package
• Environmental Compliance: ROHS3 compliance and MSL Level 1 rating

The MAX5122AEEE+ meets all these criteria and qualifies as a parametric equivalent. The primary distinction is product status: MAX5120AEEE+ is obsolete, while MAX5122AEEE+ maintains active production status.

Parameter Comparison

Engineering Selection Recommendations

The MAX5122AEEE+ is the appropriate substitute for MAX5120AEEE+ applications based on the following factors:

Parametric Equivalence: All electrical and mechanical specifications are identical across resolution, interface protocol, supply requirements, accuracy performance, and thermal characteristics.

Package Compatibility: Both components utilize the 16-QSOP surface mount package with identical physical dimensions, enabling direct PCB layout compatibility without redesign.

Compliance Alignment: Both parts maintain ROHS3 compliance and MSL Level 1 rating, satisfying equivalent environmental and regulatory requirements.

Product Status Advantage: MAX5122AEEE+ maintains active production status with confirmed inventory availability (822 Pcs), whereas MAX5120AEEE+ is obsolete. Selection of the active part ensures long-term supply chain reliability and manufacturing support.

Supply Chain Availability: MAX5122AEEE+ provides superior long-term availability compared to the obsolete MAX5120AEEE+, reducing procurement risk for both current and future production requirements.

Frequently Asked Questions (FAQ)

Q: Can MAX5122AEEE+ be used as a direct replacement for MAX5120AEEE+ in existing designs?

A: Yes. The MAX5122AEEE+ is a parametric equivalent with identical electrical specifications, settling time, accuracy performance, and 16-QSOP package configuration. No circuit modifications or PCB redesign are required for substitution.

Q: Are there any differences in SPI interface protocol between these parts?

A: No. Both components implement identical SPI digital interface specifications, ensuring software and firmware compatibility without modification.

Q: Do both parts support the same reference voltage configurations?

A: Yes. Both MAX5120AEEE+ and MAX5122AEEE+ support external and internal reference types with identical 5V supply voltage requirements.

Q: What is the primary reason to select MAX5122AEEE+ over MAX5120AEEE+?

A: MAX5122AEEE+ maintains active production status with ongoing manufacturer support and confirmed inventory availability. MAX5120AEEE+ is classified as obsolete, creating long-term supply chain risk. For new designs and ongoing production, MAX5122AEEE+ is the recommended selection.

Q: Are the thermal and operating temperature specifications identical?

A: Yes. Both parts operate across the -40°C to 85°C temperature range with identical 20µs typical settling time performance.

Q: Is PCB layout modification necessary when substituting MAX5122AEEE+ for MAX5120AEEE+?

A: No. Both components use the 16-QSOP package with identical pinout and physical dimensions, allowing direct substitution without PCB layout changes.