MAX525AEAP Equivalent & Substitute Parts

Part Overview

The MAX525AEAP is a 12-bit digital-to-analog converter (DAC) manufactured by Analog Devices Inc./Maxim Integrated, designed for data acquisition applications requiring four independent voltage output channels. This component features SPI interface compatibility, external reference capability, and buffered voltage outputs suitable for industrial and instrumentation systems.

The MAX525AEAP is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support long-term product availability for legacy systems and new designs requiring compatible functionality.

Substiute Parts

MAX525AEAP
Analog Devices Inc./Maxim IntegratedIn Stock: 2379MAX525AEAP Datasheet
MAX525AEAP
Current Part
MAX525AEAP+
Analog Devices Inc./Maxim IntegratedIn Stock: 1323MAX525AEAP+ Datasheet
MAX525AEAP+
Direct

Key Parameters

Parameter Specification
Number of Bits 12
Number of D/A Converters 4
Output Type Voltage - Buffered
Data Interface SPI
Reference Type External
Voltage - Supply, Analog 5V
Voltage - Supply, Digital 5V
Settling Time 12µs (Typ)
INL/DNL (LSB) ±0.25, ±1 (Max)
Architecture R-2R
Operating Temperature -40°C ~ 85°C
Package / Case 20-SSOP (0.209", 5.30mm Width)
Mounting Type Surface Mount

Substitute Part Grouping Explanation

Substitution of the MAX525AEAP is determined by strict equivalence across the following critical parameters:

  • Resolution and Channel Count: 12-bit resolution with 4 independent D/A converters
  • Interface Protocol: SPI digital interface for command and data transmission
  • Output Configuration: Buffered voltage output with external reference input
  • Supply Voltage Requirements: 5V analog and digital supply voltages
  • Performance Specifications: Settling time of 12µs (typical), INL/DNL of ±0.25 and ±1 LSB (maximum)
  • Converter Architecture: R-2R resistor ladder topology
  • Package Compatibility: 20-SSOP surface mount package with identical pinout and mechanical dimensions
  • Temperature Range: -40°C to 85°C operating specification

The MAX525AEAP+ meets all these criteria and qualifies as a direct substitute based on identical electrical specifications and package configuration.

Parameter Comparison

Parameter MAX525AEAP MAX525AEAP+
Number of Bits 12 12
Number of D/A Converters 4 4
Output Type Voltage - Buffered Voltage - Buffered
Data Interface SPI SPI
Reference Type External External
Voltage - Supply, Analog 5V 5V
Voltage - Supply, Digital 5V 5V
Settling Time 12µs (Typ) 12µs (Typ)
INL/DNL (LSB) ±0.25, ±1 (Max) ±0.25, ±1 (Max)
Architecture R-2R R-2R
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C
Package / Case 20-SSOP (0.209", 5.30mm Width) 20-SSOP (0.209", 5.30mm Width)
Mounting Type Surface Mount Surface Mount
Product Status Obsolete Active
RoHS Status RoHS non-compliant ROHS3 Compliant

Engineering Selection Recommendations

The MAX525AEAP+ is the direct functional equivalent of the MAX525AEAP. Both components share identical electrical specifications, performance characteristics, and mechanical packaging. The primary distinction is product lifecycle status: the MAX525AEAP is obsolete, while the MAX525AEAP+ maintains active production status.

For new designs and legacy system support, the MAX525AEAP+ is the appropriate selection. This part provides continuity of supply and maintains full electrical and mechanical compatibility with existing MAX525AEAP implementations. The MAX525AEAP+ additionally meets ROHS3 compliance requirements, whereas the original MAX525AEAP does not.

Both parts are subject to identical regulatory classifications (ECCN: EAR99, HTSUS: 8542.39.0001) and carry REACH Unaffected status.

Frequently Asked Questions (FAQ)

Q: Can the MAX525AEAP+ be used as a direct replacement for the MAX525AEAP in existing designs?

A: Yes. The MAX525AEAP+ is electrically and mechanically identical to the MAX525AEAP. All electrical specifications, pin configurations, and package dimensions are equivalent. No circuit modifications are required.

Q: What is the difference between MAX525AEAP and MAX525AEAP+?

A: The primary differences are product status and RoHS compliance. The MAX525AEAP is obsolete and RoHS non-compliant. The MAX525AEAP+ is in active production and ROHS3 compliant. Electrical performance and packaging are identical.

Q: Are there any supply voltage or interface compatibility concerns when substituting these parts?

A: No. Both parts require identical 5V analog and digital supply voltages and use the same SPI interface protocol. Pin-to-pin compatibility is complete.

Q: Does the 20-SSOP package remain the same for both parts?

A: Yes. Both the MAX525AEAP and MAX525AEAP+ use the 20-SSOP package with 0.209" width (5.30mm). Mechanical dimensions, pin spacing, and mounting requirements are identical.

Q: What is the significance of the RoHS compliance difference?

A: The MAX525AEAP+ meets ROHS3 compliance standards, making it suitable for applications subject to RoHS regulatory requirements. The MAX525AEAP does not meet these standards. For new designs and regulated applications, the MAX525AEAP+ is the appropriate choice.

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