MAX545BESD 14-Bit Digital to Analog Converter Equivalent & Substitute Parts

Part Overview

The MAX545BESD 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 SPI data interface and operates across the industrial temperature range of -40°C to 85°C. The MAX545BESD is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and new design implementations.

Substiute Parts

MAX545BESD

Analog Devices Inc./Maxim IntegratedIn Stock: 791MAX545BESD Datasheet

Current PartRFQ

MAX545BESD+

Analog Devices Inc./Maxim IntegratedIn Stock: 3205MAX545BESD+ Datasheet

DirectRFQ

AD5552BRZ

Analog Devices Inc.In Stock: 1419AD5552BRZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX545BESD is determined by strict equivalence across the following critical parameters: 14-bit resolution, single DAC channel, voltage output configuration, SPI interface, external reference requirement, R-2R architecture, identical package format (14-SOIC), and surface mount capability. All substitute parts must maintain the same electrical specifications for settling time, linearity (INL/DNL), and operating temperature range. Physical compatibility requires identical package dimensions and pin configuration.

The substitute parts identified below meet these criteria:

MAX545BESD+ — Direct variant with identical electrical specifications and package format. Differs only in product status (active vs. obsolete) and RoHS compliance level.

AD5552BRZ — Manufacturer-recommended alternative offering equivalent 14-bit resolution, single DAC channel, SPI interface, and R-2R architecture in identical 14-SOIC package. Provides extended supply voltage range and active product status.

Parameter Comparison

Engineering Selection Recommendations

MAX545BESD+ is the direct functional replacement for MAX545BESD applications. Both parts share identical electrical specifications and package format. The primary distinction is product lifecycle status: MAX545BESD+ maintains active production status and RoHS3 compliance, whereas MAX545BESD is obsolete and RoHS non-compliant. For new designs or system refreshes, MAX545BESD+ is the preferred choice due to ongoing manufacturer support and regulatory compliance.

AD5552BRZ serves as an alternative substitute when MAX545BESD+ availability is constrained. This part maintains all critical electrical parameters and package compatibility. The AD5552BRZ offers extended supply voltage range (2.7V to 5.5V versus fixed 5V), providing design flexibility for systems with variable power budgets. Both substitute parts carry active product status and RoHS3 compliance certification.

Selection between MAX545BESD+ and AD5552BRZ depends on supply chain availability and system power supply architecture. Both are electrically and mechanically compatible with existing MAX545BESD designs without circuit modification.

Frequently Asked Questions (FAQ)

Q: Can MAX545BESD+ be used as a direct replacement for MAX545BESD?

A: Yes. MAX545BESD+ is electrically and mechanically identical to MAX545BESD. Both parts feature 14-bit resolution, SPI interface, R-2R architecture, and 14-SOIC package format. The primary difference is product status: MAX545BESD+ is active and RoHS3 compliant, while MAX545BESD is obsolete.

Q: What are the key differences between MAX545BESD+ and AD5552BRZ?

A: Both parts are functionally equivalent with identical 14-bit resolution, settling time, linearity specifications, and 14-SOIC package. The AD5552BRZ offers extended supply voltage range (2.7V to 5.5V) compared to MAX545BESD+ (5V fixed). Both are active products with RoHS3 compliance.

Q: Are there any pin configuration differences between these parts?

A: No. All three parts use identical 14-SOIC package format with 0.154" width and 3.90mm body width. Pin configuration and signal assignments are equivalent, enabling direct PCB substitution.

Q: Which substitute part should be selected for new designs?

A: MAX545BESD+ is recommended for new designs as the direct successor to the obsolete MAX545BESD. AD5552BRZ is an alternative when MAX545BESD+ is unavailable or when extended supply voltage range is beneficial.

Q: Are there compliance or certification differences?

A: MAX545BESD is RoHS non-compliant. Both MAX545BESD+ and AD5552BRZ are RoHS3 compliant. All three parts are REACH unaffected and carry EAR99 export classification.

Q: Can these parts be used interchangeably in existing MAX545BESD applications?

A: Yes. MAX545BESD+, and AD5552BRZ maintain electrical equivalence across all specified parameters. No circuit modifications are required for substitution. Verify supply voltage compatibility with system design, particularly when using AD5552BRZ in applications with variable power supplies.