MAX545BCSD Equivalent & Substitute Parts

Part Overview

The MAX545BCSD is a 14-bit digital-to-analog converter (DAC) manufactured by Analog Devices Inc./Maxim Integrated, housed in a 14-SOIC surface mount package. This component features voltage output, external reference capability, and SPI data interface architecture. The part is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements. The AD5552BRZ serves as the primary manufacturer-recommended substitute, offering enhanced specifications and active product status.

Substiute Parts

MAX545BCSD

Analog Devices Inc./Maxim IntegratedIn Stock: 814MAX545BCSD Datasheet

Current PartRFQ

AD5552BRZ

Analog Devices Inc.In Stock: 1419AD5552BRZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX545BCSD is determined by the following critical parameters that must remain constant or compatible:

• Resolution: 14-bit conversion capability
• Converter Count: Single D/A converter
• Output Configuration: Voltage output, unbuffered topology
• Interface Protocol: SPI serial data interface
• Reference Architecture: External reference input
• Converter Architecture: R-2R resistor ladder network
• Package Compatibility: 14-SOIC surface mount form factor with identical 0.154" (3.90mm) width
• Accuracy Specifications: INL/DNL performance of ±0.15 LSB maximum

The AD5552BRZ meets all these core requirements while providing improved electrical performance and active product status.

Parameter Comparison

Engineering Selection Recommendations

The AD5552BRZ is the appropriate substitute for the obsolete MAX545BCSD based on the following factors:

Functional Equivalence: Both devices share identical core specifications across resolution, converter architecture, output topology, interface protocol, and package form factor. Pin-to-pin compatibility is maintained within the 14-SOIC package.

Enhanced Specifications: The AD5552BRZ provides expanded supply voltage ranges (2.7V to 5.5V versus fixed 5V) and extended operating temperature range (-40°C to 85°C versus 0°C to 70°C), enabling deployment in broader application environments.

Regulatory Compliance: The AD5552BRZ achieves ROHS3 compliance and maintains REACH unaffected status, meeting current environmental and regulatory requirements. The MAX545BCSD is RoHS non-compliant.

Product Lifecycle Status: The AD5552BRZ maintains active product status with established supply chain availability (1405 units in stock), whereas the MAX545BCSD is obsolete with limited remaining inventory (788 units).

Frequently Asked Questions (FAQ)

Q: Can the AD5552BRZ directly replace the MAX545BCSD in existing designs?

A: Yes. Both devices are pin-compatible within the 14-SOIC package and share identical functional specifications for resolution, converter count, output type, interface protocol, and accuracy. No circuit modifications are required for direct substitution.

Q: What are the key differences between these parts?

A: The primary differences are product status (obsolete versus active), supply voltage range (fixed 5V versus 2.7V to 5.5V), operating temperature range (0°C to 70°C versus -40°C to 85°C), and RoHS compliance status (non-compliant versus ROHS3 compliant).

Q: Are there any package considerations for substitution?

A: Both parts use identical 14-SOIC surface mount packaging with 0.154" (3.90mm) width. PCB footprints and assembly processes remain unchanged.

Q: Does the AD5552BRZ require different supply voltage levels?

A: The AD5552BRZ accepts the same 5V supply used by the MAX545BCSD but also supports lower voltages down to 2.7V. Existing 5V supply designs require no modification.

Q: What is the inventory status for these parts?

A: The MAX545BCSD has 788 units available as new original stock. The AD5552BRZ has 1405 units available, providing greater supply security for new production.