MAX280CPA Equivalent & Substitute Parts

Part Overview

The MAX280CPA is a Butterworth, low pass switched capacitor filter IC manufactured by Analog Devices Inc./Maxim Integrated. This 5th order filter operates at a 20kHz cutoff frequency and is housed in an 8-DIP through-hole package. The device is classified as obsolete, which necessitates identification of active equivalent parts for new designs and ongoing production requirements. Finding suitable substitutes ensures design continuity and supply chain reliability.

Substiute Parts

MAX280CPA

Analog Devices Inc./Maxim IntegratedIn Stock: 1519MAX280CPA Datasheet

Current PartRFQ

MAX280CPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1569MAX280CPA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX280CPA is determined by strict equivalence across the following critical parameters:

• Filter Type: Butterworth, Low Pass Switched Capacitor
• Filter Order: 5th
• Frequency - Cutoff or Center: 20kHz
• Number of Filters: 1
• Voltage - Supply: 4.75V ~ 16V, ±2.375V ~ 8V
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)

The MAX280CPA+ is identified as a direct substitute based on identical electrical specifications and mechanical compatibility. The primary distinction is product status and compliance certification, which affects availability and regulatory requirements for new applications.

Parameter Comparison

Engineering Selection Recommendations

The MAX280CPA+ is the direct functional equivalent of the MAX280CPA. Both parts maintain identical electrical and mechanical specifications, ensuring pin-for-pin compatibility and equivalent circuit performance.

The MAX280CPA+ is recommended for new designs and production applications due to its active product status and ROHS3 compliance. The original MAX280CPA, classified as obsolete, presents supply chain constraints and does not meet current RoHS3 regulatory requirements.

For legacy systems currently using the MAX280CPA, the MAX280CPA+ provides a compliant upgrade path without circuit redesign. Both parts operate within the same voltage supply range, support identical filtering characteristics, and utilize the same 8-DIP through-hole package.

Frequently Asked Questions (FAQ)

Q: Are MAX280CPA and MAX280CPA+ pin-for-pin compatible?

A: Yes. Both parts are housed in 8-DIP packages with identical pinouts and electrical specifications. Direct substitution is possible without PCB modification.

Q: What is the primary difference between MAX280CPA and MAX280CPA+?

A: The MAX280CPA+ is an active product with ROHS3 compliance, while the MAX280CPA is obsolete and RoHS non-compliant. Electrical and mechanical specifications are identical.

Q: Can MAX280CPA+ be used in designs originally specified for MAX280CPA?

A: Yes. The MAX280CPA+ meets all electrical and mechanical requirements of the original specification. No circuit changes are required.

Q: What packaging options are available for these parts?

A: Both MAX280CPA and MAX280CPA+ are supplied in 8-DIP through-hole packages. The MAX280CPA+ is available in tube packaging.

Q: Are there supply considerations when selecting between these parts?

A: The MAX280CPA is obsolete and has limited availability. The MAX280CPA+ is an active product with established supply channels and current inventory.

Q: Do these parts meet current regulatory requirements?

A: The MAX280CPA+ is ROHS3 compliant and REACH unaffected. The MAX280CPA is RoHS non-compliant and suitable only for legacy applications where RoHS exemptions apply.