MAX544AESA+ Equivalent & Substitute Parts

Part Overview

The MAX544AESA+ 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 R-2R architecture with external reference capability and SPI data interface, operating across the industrial temperature range of -40°C to 85°C. The MAX544AESA+ is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

MAX544AESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 3138MAX544AESA+ Datasheet

Current PartRFQ

MAX544BESA+

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

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX544AESA+ is determined by strict equivalence across the following critical parameters:

• Resolution & Architecture: 14-bit R-2R DAC topology
• Functional Interface: Single converter with SPI data interface and external reference
• Output Characteristics: Unbuffered voltage output with ±0.15 LSB INL/DNL specification
• Electrical Performance: 1µs settling time, 5V analog and digital supply operation
• Physical Form Factor: 8-SOIC surface mount package (0.154" width, 3.90mm)
• Environmental Compliance: ROHS3 compliance, MSL 1 rating, operating range -40°C to 85°C

The MAX544BESA+ meets all these criteria as a parametric equivalent, with the primary distinction being active product status and alternative packaging configuration (tube vs. unspecified for the original part).

Parameter Comparison

Engineering Selection Recommendations

The MAX544BESA+ is the direct parametric equivalent for MAX544AESA+ replacement. Both parts are manufactured by Analog Devices Inc./Maxim Integrated and share identical electrical specifications, package geometry, and compliance certifications (ROHS3, REACH Unaffected, EAR99 classification).

The primary advantage of selecting MAX544BESA+ is its active product status, ensuring long-term availability and manufacturing support. The MAX544AESA+ is obsolete and subject to inventory depletion. Both parts maintain equivalent performance in 14-bit DAC applications requiring SPI interface, external reference configuration, and 5V supply operation.

Packaging configuration differs (tube for MAX544BESA+ versus unspecified for MAX544AESA+), but this does not affect electrical or mechanical compatibility in PCB assembly processes.

Frequently Asked Questions (FAQ)

Q: Can MAX544BESA+ directly replace MAX544AESA+ in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters. Pin configuration, package dimensions, and electrical performance are equivalent. No design modifications are required.

Q: What is the significance of the product status difference?

A: MAX544AESA+ is classified as obsolete, indicating discontinued manufacturing and limited inventory availability. MAX544BESA+ maintains active status, ensuring continued supply and manufacturing support from Analog Devices Inc./Maxim Integrated.

Q: Are there any compliance or certification differences?

A: No. Both parts carry identical RoHS3 compliance, REACH Unaffected status, and EAR99 ECCN classification. MSL ratings are equivalent at Level 1 (Unlimited).

Q: Does packaging format affect circuit performance?

A: No. The tube packaging of MAX544BESA+ is a distribution format only. The 8-SOIC component package, pin configuration, and electrical characteristics remain identical to MAX544AESA+.

Q: What parameters determine substitution eligibility for 14-bit DAC components?

A: Resolution (14-bit), converter count (1), output type (unbuffered voltage), data interface (SPI), reference configuration (external), settling time (1µs typical), supply voltages (5V analog/digital), linearity specifications (±0.15 LSB INL/DNL), architecture (R-2R), temperature range (-40°C to 85°C), and package form factor (8-SOIC) must all match exactly.