MAX280CWE+

Overview

The MAX280CWE+ is a fifth-order Butterworth low-pass switched-capacitor filter manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates with a cutoff frequency of 20kHz and is housed in a 16-SOIC surface-mount package. This component integrates active filtering capabilities within a single IC, designed for applications requiring precise signal conditioning without external passive components.

Feature Summary

• Integrates fifth-order Butterworth low-pass filtering characteristics
• Utilizes switched-capacitor technology for compact implementation
• Features a fixed 20kHz cutoff frequency for signal band limiting

Applications

• Signal conditioning in data acquisition systems
• Anti-aliasing filters for analog-to-digital converters
• Audio processing circuits requiring low-frequency band limitation

Procurement Notes

Verify the specific suffix and temperature grade against the official datasheet to ensure compatibility with your operating environment. Confirm that the 16-SOIC package dimensions match your PCB footprint requirements. Check for any recent lifecycle status updates or obsolescence notices from Analog Devices before finalizing procurement plans.

Selection Notes

Select this component when a fixed 20kHz cutoff is required for anti-aliasing or noise reduction. Ensure the system clock frequency supports the switched-capacitor operation range specified in the datasheet. Consider the power supply voltage constraints and thermal dissipation capabilities inherent to the SOIC package for reliable long-term operation.

Part Context

This part belongs to the MAX280 family of active filters, which are designed to replace complex discrete RC networks. The MAX280CWE+ specifically denotes the commercial temperature range variant in a wide SOIC package. It simplifies design efforts by providing high-order filtering performance in a small form factor compared to traditional passive implementations.

Replacement Considerations

Consult the official Analog Devices replacement guide for direct pin-compatible alternatives. Verify if upgraded series members offer improved specifications or extended temperature ranges suitable for your application.