MAX280CWE+T

Overview

The MAX280CWE+T is a fifth-order zero-error Butterworth active low-pass filter manufactured by Analog Devices Inc. under the Maxim Integrated brand. It utilizes switched-capacitor technology to provide precise frequency response characteristics without requiring external tuning components. The device operates within a supply voltage range of 4.75 V to 11 V and features a cutoff frequency of 20 kHz. It is housed in a 16-pin SOIC package and supports an operating temperature range from 0°C to +70°C.

Feature Summary

• Implements fifth-order Butterworth filtering topology for maximally flat passband response
• Utilizes switched-capacitor architecture to eliminate the need for external precision resistors or capacitors
• Provides zero-error performance through internal clocking mechanisms

Applications

• Precision signal conditioning circuits
• Data acquisition systems requiring anti-aliasing filters
• Instrumentation amplifier front ends

Procurement Notes

Verify component authenticity through authorized distributors due to potential availability constraints. Confirm RoHS compliance status and specific tape-and-reel packaging details prior to ordering. Ensure supply chain stability as this part may be subject to limited distribution channels.

Selection Notes

Select this component when a fixed 20 kHz cutoff frequency with Butterworth characteristics is required. Consider the switched-capacitor nature regarding clock feedthrough effects on sensitive analog signals. Verify that the 16-pin SOIC footprint aligns with the target PCB layout constraints.

Part Context

This part belongs to the MAX280 series of active filters, which are designed for applications demanding high accuracy without manual calibration. The 'C' suffix indicates commercial temperature grading, while '+T' denotes lead-free construction and reel packaging format.

Replacement Considerations

Public confirmed substitute part numbers: MAX280EWE+T.