MAX539ACSA 12-Bit Digital to Analog Converter Equivalent & Substitute Parts

Part Overview

The MAX539ACSA is a 12-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 a single DAC channel with SPI interface, external reference capability, and buffered voltage output in an 8-SOIC surface mount package.

The MAX539ACSA is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications currently utilizing this component.

Substiute Parts

MAX539ACSA

Analog Devices Inc./Maxim IntegratedIn Stock: 1444MAX539ACSA Datasheet

Current PartRFQ

MAX539ACSA+

Analog Devices Inc./Maxim IntegratedIn Stock: 4356MAX539ACSA+ Datasheet

DirectRFQ

MAX538ACSA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1150MAX538ACSA+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MAX539ACSA are identified based on strict electrical and mechanical parameter equivalence. The substitution criteria are:

Critical Parameters for Substitution:

• Resolution: 12 bits
• Number of D/A Converters: 1 channel
• Output Type: Voltage - Buffered
• Data Interface: SPI
• Reference Type: External
• Settling Time: 25µs (Typical)
• Supply Voltages: 5V analog and digital
• INL/DNL Specifications: ±0.5 (Max) / ±1 (Max)
• Architecture: R-2R
• Operating Temperature: 0°C to 70°C
• Package: 8-SOIC surface mount

Identified Substitutes:

1. MAX539ACSA+ (Direct Manufacturer Equivalent) - Identical electrical specifications and package. Differs only in packaging format (Tube) and product status (Active vs. Obsolete). RoHS3 compliant.

2. MAX538ACSA+ (Parametric Equivalent) - Meets all critical electrical and mechanical parameters. Differs in base product number (MAX538 vs. MAX539) while maintaining identical functional specifications. RoHS3 compliant and Active status.

Parameter Comparison

Engineering Selection Recommendations

MAX539ACSA+ (Direct Manufacturer Equivalent): This part is the recommended primary substitute. It maintains identical electrical and mechanical specifications to the MAX539ACSA while offering Active product status and ROHS3 compliance. The only difference is packaging format (Tube). This part is suitable for direct replacement in all applications currently using MAX539ACSA.

MAX538ACSA+ (Parametric Equivalent): This part meets all critical electrical and mechanical parameters required for functional equivalence. It differs in base product designation (MAX538 vs. MAX539) but maintains identical performance characteristics, settling time, resolution, and interface specifications. This part is suitable for applications where the base product number change is acceptable. ROHS3 compliance and Active status provide long-term supply chain assurance.

Both substitute parts are manufactured by Analog Devices Inc./Maxim Integrated and are available in Active product status with current inventory, ensuring supply chain continuity for the obsolete MAX539ACSA.

Frequently Asked Questions (FAQ)

Q: Can MAX539ACSA+ be used as a direct replacement for MAX539ACSA? A: Yes. MAX539ACSA+ is electrically and mechanically identical to MAX539ACSA. The primary difference is product status (Active vs. Obsolete) and packaging format (Tube). Both parts are pin-compatible and functionally equivalent.

Q: What is the difference between MAX539ACSA+ and MAX538ACSA+? A: Both parts meet identical electrical specifications for 12-bit resolution, SPI interface, buffered voltage output, and 25µs settling time. The difference is the base product number designation (MAX539 vs. MAX538). Both are parametrically equivalent and suitable for applications requiring these specifications.

Q: Are the substitute parts pin-compatible with MAX539ACSA? A: Yes. Both MAX539ACSA+ and MAX538ACSA+ use the same 8-SOIC package with identical pinout and mechanical dimensions (0.154", 3.90mm width). No PCB layout modifications are required.

Q: What is the significance of RoHS3 compliance on the substitute parts? A: The substitute parts (MAX539ACSA+ and MAX538ACSA+) are ROHS3 compliant, whereas the original MAX539ACSA is non-compliant. This compliance status is relevant for applications subject to RoHS regulations and environmental standards.

Q: Can both substitute parts be used interchangeably in the same application? A: Yes. Both MAX539ACSA+ and MAX538ACSA+ meet all critical electrical and mechanical parameters. Selection between them may depend on availability, packaging preference, or specific supply chain requirements.

Q: What is the operating temperature range for these parts? A: All three parts (MAX539ACSA, MAX539ACSA+, and MAX538ACSA+) operate within the 0°C to 70°C temperature range.

Q: Are external reference components required for these DAC parts? A: Yes. All three parts require an external reference voltage source. The reference type is External for all variants.