MAX263BCWI Equivalent & Substitute Parts

Part Overview

The MAX263BCWI is a Universal Switched Capacitor Filter IC manufactured by Analog Devices Inc./Maxim Integrated. This 2nd order, 57kHz switched capacitor filter is designed for signal conditioning and filtering applications requiring precise frequency response control. The device integrates two independent filter channels in a 28-SOIC surface mount package.

The MAX263BCWI is classified as obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term production requirements for systems utilizing this filter architecture.

Substiute Parts

MAX263BCWI

Analog Devices Inc./Maxim IntegratedIn Stock: 935MAX263BCWI Datasheet

Current PartRFQ

MAX263BCWI+

Analog Devices Inc./Maxim IntegratedIn Stock: 736MAX263BCWI+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX263BCWI is determined by the following critical parameters:

• Filter Architecture: Universal Switched Capacitor topology with 2nd order response
• Frequency Specification: 57kHz cutoff or center frequency
• Channel Count: Dual independent filter channels
• Package Compatibility: 28-SOIC surface mount form factor
• Electrical Interface: Pin-compatible signal routing and control

The MAX263BCWI+ qualifies as a direct substitute based on identical filter topology, frequency specification, channel configuration, and package footprint. Both devices share the same base product number (MAX263) and maintain functional equivalence in switched capacitor filter applications.

Parameter Comparison

Engineering Selection Recommendations

The MAX263BCWI+ is the direct substitute for the obsolete MAX263BCWI. Both devices share identical filter specifications, package geometry, and functional architecture, ensuring drop-in compatibility in existing circuit designs.

The MAX263BCWI+ offers the following advantages for new designs and production continuity:

• Active Product Status: Ensures ongoing availability and manufacturing support from Analog Devices Inc./Maxim Integrated
• ROHS3 Compliance: Meets current environmental and regulatory requirements for commercial and industrial applications
• Extended Supply Voltage Range: Operates across 4.74V to 12.6V single supply or ±2.37V to ±6.3V dual supply, providing greater design flexibility compared to the ±5V specification of the original part
• Identical Packaging: 28-SOIC form factor maintains PCB layout compatibility without redesign requirements

For applications currently using the MAX263BCWI, transition to the MAX263BCWI+ is recommended to secure long-term component availability and ensure compliance with modern manufacturing standards.

Frequently Asked Questions (FAQ)

Q: Can the MAX263BCWI+ be used as a direct replacement for the MAX263BCWI in existing designs?

A: Yes. The MAX263BCWI+ is functionally equivalent to the MAX263BCWI. Both devices feature identical filter topology, 57kHz frequency specification, dual-channel architecture, and 28-SOIC packaging. The devices are pin-compatible and require no circuit modifications for substitution.

Q: What is the primary difference between the MAX263BCWI and MAX263BCWI+?

A: The MAX263BCWI+ is the active production variant with ROHS3 compliance and extended supply voltage range (4.74V ~ 12.6V or ±2.37V ~ 6.3V) compared to the original ±5V specification. The MAX263BCWI is classified as obsolete.

Q: Are there any package or footprint differences between these parts?

A: No. Both the MAX263BCWI and MAX263BCWI+ use the 28-SOIC (0.295", 7.50mm Width) surface mount package. PCB layouts and assembly processes require no modification when substituting between these parts.

Q: Does the extended supply voltage range of the MAX263BCWI+ affect circuit design?

A: The MAX263BCWI+ maintains backward compatibility with ±5V supply designs. The extended voltage range provides additional flexibility for applications requiring different supply configurations, but existing ±5V designs operate without modification.

Q: What is the moisture sensitivity level for both parts?

A: Both the MAX263BCWI and MAX263BCWI+ have MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage, handling, or assembly processes.