MAX509AEAP Equivalent & Substitute Parts

Part Overview

The MAX509AEAP is an 8-bit digital-to-analog converter (DAC) with four independent channels, designed for data acquisition applications requiring voltage output conversion. Manufactured by Analog Devices Inc./Maxim Integrated, this component features SPI interface compatibility and external reference capability. The MAX509AEAP is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. Active alternatives with identical or superior electrical and mechanical specifications are available to ensure design continuity.

Substiute Parts

MAX509AEAP

Analog Devices Inc./Maxim IntegratedIn Stock: 818MAX509AEAP Datasheet

Current PartRFQ

MAX509AEAP+

Analog Devices Inc./Maxim IntegratedIn Stock: 935MAX509AEAP+ Datasheet

DirectRFQ

MAX509BEAP+

Analog Devices Inc./Maxim IntegratedIn Stock: 907MAX509BEAP+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MAX509AEAP are qualified based on strict electrical and mechanical parameter equivalence. The following criteria determine substitution validity:

Critical Parameters for Substitution:

• Number of bits: 8
• Number of D/A converters: 4
• Settling time: 6µs (Typ)
• Output type: Voltage - Buffered
• Data interface: SPI
• Reference type: External
• Supply voltages: ±5V (Analog), 5V (Digital)
• INL/DNL specification: ±1 (Max)
• Architecture: R-2R
• Operating temperature range: -40°C ~ 85°C
• Package: 20-SSOP with identical physical dimensions
• Mounting type: Surface Mount

All substitute parts listed maintain identical electrical performance and mechanical compatibility with the original MAX509AEAP specification.

Parameter Comparison

Engineering Selection Recommendations

MAX509AEAP+ (Direct Manufacturer Equivalent): The MAX509AEAP+ is the primary substitute for the obsolete MAX509AEAP. This part maintains identical electrical specifications and physical packaging while offering active product status and ROHS3 compliance. Selection of MAX509AEAP+ is appropriate for new designs and production continuity where regulatory compliance is required.

MAX509BEAP+ (Parametric Equivalent): The MAX509BEAP+ provides full parametric equivalence to the MAX509AEAP across all critical electrical and mechanical specifications. This part is active and ROHS3 compliant, offering an alternative source for supply chain flexibility. Both MAX509AEAP+ and MAX509BEAP+ are functionally interchangeable within the specified parameter set.

Compliance Considerations: Both substitute parts achieve ROHS3 compliance, addressing environmental and regulatory requirements that the original MAX509AEAP does not meet. For applications requiring RoHS certification, either substitute part is suitable.

Frequently Asked Questions (FAQ)

Q: Can MAX509AEAP+ directly replace MAX509AEAP in existing designs? A: Yes. The MAX509AEAP+ maintains identical electrical specifications, pin configuration, and 20-SSOP package dimensions. No circuit modifications are required.

Q: What is the difference between MAX509AEAP+ and MAX509BEAP+? A: Both parts are parametrically equivalent with identical electrical performance and package specifications. They differ only in manufacturer lot tracking and internal revision levels, which do not affect functional compatibility.

Q: Are there any package or mounting differences between these parts? A: No. All three parts use the 20-SSOP surface mount package with identical physical dimensions (0.209", 5.30mm Width). PCB footprints and assembly processes remain unchanged.

Q: Why is the original MAX509AEAP obsolete? A: The MAX509AEAP has been discontinued by the manufacturer. Active equivalents MAX509AEAP+ and MAX509BEAP+ are available to support ongoing production requirements.

Q: Do the substitute parts meet RoHS requirements? A: Yes. Both MAX509AEAP+ and MAX509BEAP+ are ROHS3 compliant, whereas the original MAX509AEAP is RoHS non-compliant.

Q: Are settling time and accuracy specifications identical across all three parts? A: Yes. All three parts specify 6µs typical settling time and ±1 LSB maximum INL/DNL performance.