MAX538BESA Equivalent & Substitute Parts

Part Overview

The MAX538BESA is a 12-bit Digital to Analog Converter (DAC) manufactured by Analog Devices Inc./Maxim Integrated, housed in an 8-SOIC surface mount package. This component provides voltage-buffered output with SPI data interface and external reference capability, operating across the industrial temperature range of -40°C to 85°C. The MAX538BESA is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

MAX538BESA

Analog Devices Inc./Maxim IntegratedIn Stock: 2410MAX538BESA Datasheet

Current PartRFQ

MAX538BESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1187MAX538BESA+ Datasheet

DirectRFQ

MAX539BESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2266MAX539BESA+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX538BESA is determined by strict equivalence across the following critical parameters: 12-bit resolution, single D/A converter configuration, voltage-buffered output topology, SPI serial interface, external reference architecture, R-2R converter design, 5V analog and digital supply requirements, ±1 LSB INL/DNL specification, 25µs settling time, 8-SOIC package geometry, and -40°C to 85°C operating temperature range.

The identified substitute parts maintain identical electrical and mechanical specifications across all these parameters. Substitution is valid only when all parameters match exactly. The primary distinction between alternatives lies in product status and regulatory compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

For new designs and production continuity, MAX538BESA+ is the primary substitute. This part maintains complete electrical and mechanical equivalence while offering active product status and ROHS3 compliance, eliminating obsolescence risk and meeting current environmental regulations.

MAX539BESA+ serves as a parametric equivalent alternative, providing identical functional specifications and active availability. Selection between MAX538BESA+ and MAX539BESA+ depends on design-specific requirements and supply chain considerations, as both parts satisfy the electrical and mechanical criteria for direct substitution.

The original MAX538BESA, while functionally specified identically, carries obsolete status and RoHS non-compliance, making it unsuitable for new applications or long-term production support.

Frequently Asked Questions (FAQ)

Q: Can MAX538BESA+ directly replace MAX538BESA in existing designs?

A: Yes. MAX538BESA+ maintains identical electrical specifications, settling time, output characteristics, supply voltage requirements, and 8-SOIC package geometry. Pin-for-pin compatibility is assured across all functional parameters.

Q: What is the difference between MAX538BESA+ and MAX539BESA+?

A: Both parts are parametrically equivalent with identical 12-bit resolution, SPI interface, 5V supply requirements, 25µs settling time, R-2R architecture, and 8-SOIC packaging. The distinction lies in base product number designation (MAX538 versus MAX539), though electrical and mechanical specifications remain identical.

Q: Why is MAX538BESA classified as obsolete?

A: MAX538BESA carries obsolete product status as assigned by the manufacturer. Active alternatives MAX538BESA+ and MAX539BESA+ are available for current applications.

Q: Are there RoHS compliance differences between the substitute parts?

A: Yes. MAX538BESA is RoHS non-compliant, while both MAX538BESA+ and MAX539BESA+ are ROHS3 compliant. For applications requiring environmental regulation adherence, the compliant alternatives are required.

Q: Is the 8-SOIC package identical across all three parts?

A: Yes. All three parts use the 8-SOIC package with 0.154" width and 3.90mm body dimension, ensuring mechanical compatibility in PCB layouts and assembly processes.

Q: What supply voltage is required for operation?

A: Both analog and digital supply voltages are 5V across all three parts. No supply voltage modification is necessary when substituting between MAX538BESA, MAX538BESA+, and MAX539BESA+.