MAX544BESA Equivalent & Substitute Parts

Part Overview

The MAX544BESA is a 14-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 an 8-SOIC surface mount package and operates with 5V analog and digital supply voltages. The part is currently classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing system support and new designs requiring this specification class.

Substiute Parts

MAX544BESA

Analog Devices Inc./Maxim IntegratedIn Stock: 916MAX544BESA Datasheet

Current PartRFQ

MAX544BESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 3382MAX544BESA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX544BESA is determined by strict equivalence across the following critical parameters:

• Resolution and Converter Count: 14-bit resolution with single D/A converter
• Electrical Performance: Settling time of 1µs (Typ), INL/DNL of ±0.15 LSB, R-2R architecture
• Interface and Reference: SPI data interface with external reference requirement
• Supply Voltage: Dual 5V supplies (analog and digital)
• Package Compatibility: 8-SOIC surface mount package with identical physical dimensions
• Operating Temperature: -40°C to 85°C range

The MAX544BESA+ meets all these criteria and is therefore a direct functional equivalent. The primary distinction between these parts is product status and compliance certification, not electrical or mechanical performance.

Parameter Comparison

Engineering Selection Recommendations

The MAX544BESA+ is the direct substitute for the MAX544BESA. Both parts share identical electrical specifications, performance characteristics, and physical packaging. The MAX544BESA+ is preferred for new designs and ongoing production due to its active product status and ROHS3 compliance certification. The obsolete status of the MAX544BESA makes the MAX544BESA+ the appropriate selection for system continuity and regulatory compliance in applications subject to RoHS requirements.

Frequently Asked Questions (FAQ)

Q: Can MAX544BESA+ be used as a direct replacement for MAX544BESA in existing designs?

A: Yes. The MAX544BESA+ is electrically and mechanically identical to the MAX544BESA. No circuit modifications or firmware changes are required. Both parts operate with identical supply voltages, settling time, resolution, and SPI interface specifications.

Q: What is the difference between MAX544BESA and MAX544BESA+?

A: The parts are functionally equivalent. The primary differences are product lifecycle status (MAX544BESA is obsolete; MAX544BESA+ is active) and compliance certification (MAX544BESA+ is ROHS3 compliant while MAX544BESA is not). Electrical performance and package specifications are identical.

Q: Are there any package or pinout differences?

A: No. Both parts use the 8-SOIC package with identical physical dimensions (0.154" width, 3.90mm). Pinout and mounting requirements are identical.

Q: Which part should be selected for new designs?

A: The MAX544BESA+ should be selected for new designs. It offers active product support, improved availability, and ROHS3 compliance certification.

Q: Is the SPI interface compatible between these parts?

A: Yes. Both parts implement identical SPI data interface specifications and external reference requirements. No interface modifications are necessary.