MAX545AESD+ Equivalent & Substitute Parts

Part Overview

The MAX545AESD+ is a 14-bit digital-to-analog converter (DAC) manufactured by Analog Devices Inc./Maxim Integrated, designed for serial data acquisition applications. This component features a 5V supply voltage and operates with an SPI data interface, delivering voltage output through an unbuffered configuration. The part is currently classified as obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Substiute Parts

MAX545AESD+

Analog Devices Inc./Maxim IntegratedIn Stock: 3468MAX545AESD+ Datasheet

Current PartRFQ

MAX545BESD+

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

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX545AESD+ is determined by strict alignment of the following critical parameters:

• Resolution: 14-bit digital-to-analog conversion capability
• Package Type: 14-SOIC surface mount configuration
• Data Interface: SPI serial protocol compatibility
• Output Configuration: Voltage output, unbuffered topology
• Supply Voltage: 5V analog and digital supply requirements
• Compliance: ROHS3 compliance and moisture sensitivity level matching

The MAX545BESD+ qualifies as a parametric equivalent substitute based on identical alignment across all these criteria. Both components share the same base product number (MAX545), manufacturer, and functional specifications, with the primary distinction being product status classification.

Parameter Comparison

Engineering Selection Recommendations

The MAX545BESD+ is the direct parametric equivalent for MAX545AESD+ replacement applications. Both components maintain identical electrical and mechanical specifications across all critical substitution parameters. The MAX545BESD+ carries active product status, ensuring continued availability and manufacturing support, whereas the MAX545AESD+ is classified as obsolete.

Selection of the MAX545BESD+ is supported by:

• Identical 14-bit resolution and SPI interface architecture
• Matching 5V supply voltage requirements for both analog and digital domains
• Equivalent 14-SOIC surface mount package configuration
• ROHS3 compliance and MSL 1 rating alignment
• Same base product number designation (MAX545) confirming functional equivalence

For applications currently utilizing MAX545AESD+, transition to MAX545BESD+ requires no circuit redesign or board layout modification, as pin configuration and electrical characteristics remain unchanged.

Frequently Asked Questions (FAQ)

Q: Can MAX545BESD+ directly replace MAX545AESD+ without circuit modification?

A: Yes. Both components share identical pin configuration, package type (14-SOIC), and electrical specifications. No circuit redesign is required for substitution.

Q: What is the primary difference between MAX545AESD+ and MAX545BESD+?

A: The primary distinction is product status. MAX545AESD+ is obsolete, while MAX545BESD+ maintains active manufacturing status. Electrical and mechanical parameters are equivalent.

Q: Are there any compliance or certification differences?

A: No. Both components maintain ROHS3 compliance and identical moisture sensitivity level (MSL 1 - Unlimited), ensuring equivalent environmental and regulatory qualification.

Q: What packaging options are available for MAX545BESD+?

A: MAX545BESD+ is supplied in tube packaging, maintaining the 14-SOIC surface mount configuration with 0.154" (3.90mm) width specification.

Q: Is the SPI interface protocol identical between these components?

A: Yes. Both MAX545AESD+ and MAX545BESD+ utilize SPI serial data interface, ensuring direct software and firmware compatibility without protocol modification.

Q: What is the operating temperature range for MAX545BESD+?

A: MAX545BESD+ operates across -40°C to 85°C, providing standard industrial temperature range coverage for data acquisition applications.