MAX265BEWI+

Overview

The MAX265BEWI+ is a universal switched-capacitor filter IC from Analog Devices Inc./Maxim Integrated, housed in a 28-SOIC package. It provides a second-order filtering response with a center frequency of 57kHz. The device operates on a supply voltage range of 4.74V to 12.6V or ±2.37V to ±6.3V. Designed for precision signal processing, it integrates clock generation and requires minimal external components, making it suitable for applications demanding accurate analog filtering within mixed-signal systems.

Feature Summary

• Universal switched-capacitor architecture enabling flexible filter configuration
• Second-order filtering response for effective signal attenuation
• Integrated clock generation eliminating the need for external oscillators
• Wide single or dual supply voltage operation capability

Applications

• Audio signal processing equipment
• Industrial control system data acquisition
• Telecommunications devices requiring anti-aliasing filters

Procurement Notes

Verify component authenticity through authorized distributors due to potential counterfeit risks. Confirm RoHS compliance status via official documentation before integration. Ensure supply chain stability as availability may fluctuate. Validate pinout compatibility with existing PCB layouts during replacement planning. Review latest datasheet revisions for any functional updates or packaging changes prior to procurement.

Selection Notes

Select this component when a compact, low-component-count solution for second-order filtering is required. Consider the 57kHz center frequency suitability for the target signal bandwidth. Evaluate power supply constraints against the specified 4.74V to 12.6V operating range. Assess thermal performance within the SOIC package for the expected power dissipation. Verify interface requirements do not necessitate additional clock circuitry.

Part Context

This part belongs to the MAX265 series of universal switched-capacitor filters by Maxim Integrated, now part of Analog Devices. These ICs are designed to replace traditional active RC filters, offering improved accuracy and reduced size. The series typically includes variants with different cutoff frequencies, allowing designers to tailor filtering characteristics without changing the fundamental circuit topology or component count significantly.

Replacement Considerations

Direct substitutes include other MAX265 series variants such as MAX265BCPI+ or MAX266BEWI+, which offer similar functionality but potentially different cutoff frequencies or package options. When replacing, ensure the new part's center frequency matches the application requirements. Verify that the pinout remains compatible if swapping between specific suffixes. Check for any differences in supply voltage ranges or power consumption specifications.