MAX509AEWP Equivalent & Substitute Parts

Part Overview

The MAX509AEWP is an 8-bit digital-to-analog converter (DAC) manufactured by Analog Devices Inc./Maxim Integrated, featuring four independent DAC channels with voltage-buffered output. This component operates with external voltage references and dual supply rails (±5V analog, 5V digital), utilizing an R-2R resistor ladder architecture for signal conversion. The device communicates via SPI interface and is housed in a 20-SOIC surface-mount package.

The MAX509AEWP is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support legacy system maintenance or redesign initiatives.

Substiute Parts

MAX509AEWP

Analog Devices Inc./Maxim IntegratedIn Stock: 700MAX509AEWP Datasheet

Current PartRFQ

MAX509AEWP+

Analog Devices Inc./Maxim IntegratedIn Stock: 1009MAX509AEWP+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX509AEWP is determined by strict equivalence across the following critical parameters:

• Resolution and Channel Count: 8-bit resolution with 4 independent DAC channels
• Output Characteristics: Voltage-buffered output with external reference capability
• Interface Protocol: SPI digital communication
• Supply Voltage Requirements: ±5V analog supply and 5V digital supply
• Accuracy Specifications: INL/DNL of ±1 LSB (Max)
• Conversion Architecture: R-2R resistor ladder topology
• Settling Time: 6µs typical response time
• Package Compatibility: 20-SOIC surface-mount form factor with identical pin configuration
• Temperature Range: -40°C to 85°C operating window

The substitute part MAX509AEWP+ maintains identical electrical specifications and mechanical compatibility with the original device.

Parameter Comparison

Engineering Selection Recommendations

The MAX509AEWP+ serves as a direct functional equivalent to the MAX509AEWP with identical electrical and mechanical specifications. The primary distinction between these parts is regulatory compliance status: the MAX509AEWP+ achieves ROHS3 compliance, whereas the original MAX509AEWP does not meet this standard.

For new designs or systems requiring RoHS compliance, the MAX509AEWP+ is the appropriate selection. For legacy system maintenance where RoHS compliance is not mandated, either part may be used interchangeably based on availability and supply chain considerations. Both parts maintain REACH Unaffected status and EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can MAX509AEWP+ be used as a direct replacement for MAX509AEWP in existing designs?

A: Yes. The MAX509AEWP+ is electrically and mechanically identical to the MAX509AEWP. Pin configuration, signal timing, supply voltage requirements, and output characteristics are equivalent. No circuit modifications are required for substitution.

Q: What is the difference between MAX509AEWP and MAX509AEWP+?

A: The primary difference is RoHS compliance status. The MAX509AEWP+ is ROHS3 compliant, while the MAX509AEWP is RoHS non-compliant. All electrical specifications and package dimensions are identical.

Q: Are there any compatibility concerns when substituting these parts?

A: No compatibility concerns exist. Both parts use the 20-SOIC surface-mount package with identical pinout, supply voltage requirements (±5V analog, 5V digital), and SPI interface protocol. PCB layout and firmware remain unchanged.

Q: Which part should be selected for new product development?

A: The MAX509AEWP+ should be selected for new designs due to ROHS3 compliance, which aligns with current regulatory requirements and supply chain standards.

Q: Are both parts still available for procurement?

A: Both parts are classified as obsolete. Availability should be verified with authorized distributors. Current inventory status may vary by supplier.