MAX539ACPA+ Equivalent & Substitute Parts

Part Overview

The MAX539ACPA+ is a 12-bit digital-to-analog converter (DAC) manufactured by Analog Devices Inc./Maxim Integrated, housed in an 8-DIP through-hole package. This component features SPI data interface, external voltage reference capability, and buffered voltage output suitable for data acquisition applications. The product is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing system support, maintenance, and component procurement in legacy designs.

Substiute Parts

MAX539ACPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1124MAX539ACPA+ Datasheet

Current PartRFQ

MAX539ACPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1124MAX539ACPA+ Datasheet

DirectRFQ

MAX538ACPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 788MAX538ACPA+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MAX539ACPA+ is determined by strict equivalence across the following critical parameters:

• Resolution: 12-bit digital-to-analog conversion capability
• Output Configuration: Buffered voltage output with external reference
• Interface Protocol: SPI serial data interface
• Supply Voltage: Dual 5V supplies (analog and digital)
• Accuracy Specification: INL/DNL performance of ±0.5 (Max) and ±1 (Max) LSB
• Package Format: 8-DIP through-hole package (0.300", 7.62mm)
• Settling Time: 25µs typical response time
• Architecture: R-2R resistor ladder network

The MAX538ACPA+ meets all these criteria and is classified as a parametric equivalent. Both parts share identical electrical specifications, package geometry, and functional characteristics, enabling direct substitution in circuit designs.

Parameter Comparison

Engineering Selection Recommendations

Both the MAX539ACPA+ and MAX538ACPA+ are classified as obsolete products. Selection between these parts should be based on current inventory availability and compliance requirements.

Compliance Considerations:

• Both parts maintain ROHS3 compliance status
• Both parts are REACH unaffected
• Both parts carry MSL rating of 1 (Unlimited), indicating no moisture sensitivity constraints during storage and handling

Inventory Status:

• MAX539ACPA+: 1041 pieces available
• MAX538ACPA+: 776 pieces available

For applications requiring the 12-bit DAC functionality with SPI interface, external reference capability, and 5V dual-supply operation in an 8-DIP package, either part provides equivalent performance. Component selection should prioritize availability and supply chain continuity for the specific procurement timeline.

Frequently Asked Questions (FAQ)

Q: Can MAX538ACPA+ directly replace MAX539ACPA+ in existing designs?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, pin configurations, and package geometry. No circuit modifications are required for substitution.

Q: Are there any differences in SPI protocol implementation between these parts?

A: No. Both parts implement identical SPI data interface specifications, including clock polarity, data timing, and command structure.

Q: What is the significance of the 8-DIP package specification?

A: The 8-DIP (0.300", 7.62mm) package indicates a through-hole dual inline package with 0.3-inch row spacing. This package format is identical for both parts, ensuring mechanical compatibility on PCBs designed for either component.

Q: Do these parts require different external reference circuits?

A: No. Both parts use external voltage reference configuration with identical reference input specifications. Existing reference circuits designed for MAX539ACPA+ operate without modification when using MAX538ACPA+.

Q: What is the operating temperature range for both parts?

A: Both parts operate across 0°C to 70°C. Applications requiring extended temperature ranges beyond this specification require alternative component selection.

Q: Are there supply voltage flexibility options?

A: No. Both parts require fixed 5V supplies for both analog and digital sections. Designs requiring different supply voltages cannot use these components.