AD7580KPZ Equivalent & Substitute Parts

Part Overview

The AD7580KPZ is a 10-bit Analog to Digital Converter manufactured by Analog Devices Inc., designed for data acquisition applications requiring dual differential inputs with a 50 kHz sampling rate. The device features a Successive Approximation Register (SAR) architecture with external reference capability and operates from dual 5V supply rails.

The AD7580KPZ is classified as an obsolete product. Identifying equivalent and substitute parts is necessary to maintain system functionality, ensure continued availability for production and maintenance, and evaluate alternative solutions for new designs or legacy system support.

Substiute Parts

AD7580KPZ

Analog Devices Inc.In Stock: 1094AD7580KPZ Datasheet

Current PartRFQ

AD7580AQ

Analog Devices Inc.In Stock: 908AD7580AQ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AD7580KPZ are identified based on functional equivalence across core electrical and mechanical parameters. The primary substitution criteria are:

Electrical Parameters (Must Match):

• Resolution: 10 bits
• Sampling Rate: 50 kHz
• Number of Inputs: 2
• Input Configuration: Differential
• Data Interface: Parallel
• Architecture: SAR
• Reference Type: External
• Supply Voltages: 5V (Analog and Digital)

Mechanical Considerations:

• Package type and pin count may differ, requiring PCB layout evaluation
• Mounting type (surface mount vs. through-hole) affects assembly compatibility

The AD7580AQ shares all core electrical specifications with the AD7580KPZ, making it functionally equivalent. However, differences in package type, operating temperature range, and product status must be evaluated for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

AD7580AQ as a Substitute:

The AD7580AQ is functionally equivalent to the AD7580KPZ across all core electrical parameters. Selection of this substitute is supported by the following factors:

• Product Status: The AD7580AQ is classified as Active, ensuring continued manufacturer support, availability, and compliance with current regulatory standards.
• Regulatory Compliance: The AD7580AQ carries ROHS3 compliance and REACH Unaffected status, meeting modern environmental and safety requirements.
• Moisture Sensitivity: The MSL rating of 1 (Unlimited) provides superior handling and storage characteristics compared to the MSL 3 rating of the AD7580KPZ.
• Operating Temperature Range: The extended range of -25°C to 85°C accommodates a broader set of environmental conditions.

Design Considerations:

The primary difference between these devices is the package type: the AD7580KPZ uses a 28-pin surface-mount LCC package, while the AD7580AQ uses a 24-pin through-hole CDIP package. This difference requires PCB layout modification and assembly process changes. Pin-to-pin functional mapping must be verified during integration.

Frequently Asked Questions (FAQ)

Q: Can the AD7580AQ directly replace the AD7580KPZ without circuit modification?

A: The AD7580AQ is electrically equivalent but uses a different package type (24-CDIP through-hole vs. 28-LCC surface-mount). Direct socket replacement is not possible. Pin mapping and PCB layout changes are required.

Q: What are the key electrical differences between these parts?

A: There are no electrical differences. Both devices provide 10-bit resolution, 50 kHz sampling rate, 2 differential inputs, parallel data interface, and identical supply voltage requirements (5V analog and digital).

Q: Why is the AD7580KPZ obsolete?

A: The AD7580KPZ is classified as obsolete by the manufacturer. The AD7580AQ represents the active product line continuation with equivalent functionality and improved compliance characteristics.

Q: Does the operating temperature range difference affect compatibility?

A: The AD7580AQ supports -25°C to 85°C, while the AD7580KPZ supports 0°C to 70°C. The AD7580AQ's extended range is a superset of the original specification, making it suitable for applications requiring the original temperature range and beyond.

Q: What is the significance of the MSL rating difference?

A: The AD7580KPZ has MSL 3 (168-hour floor life), requiring controlled storage and handling. The AD7580AQ has MSL 1 (unlimited floor life), eliminating moisture sensitivity constraints and simplifying inventory management.

Q: Are there any compliance or certification differences?

A: The AD7580AQ includes ROHS3 compliance and REACH Unaffected status. The AD7580KPZ, as an obsolete product, may not meet current regulatory requirements for new designs or markets with mandatory compliance standards.