MAX274AEWI+

Overview

The MAX274AEWI+ is a fourth-order, continuous-time active low-pass filter manufactured by Analog Devices under the Maxim Integrated brand. It operates on a single 5V supply and features an external clock input for frequency tuning. The device utilizes a wide dynamic range architecture to minimize distortion. It is housed in a 28-pin SOIC package with an industrial temperature rating of -40°C to +85°C.

Feature Summary

• Continuous-time architecture designed for high-frequency signal processing applications
• Single-supply operation capability simplifies power distribution requirements
• External clock input allows precise control over the filter's cutoff frequency

Applications

• Signal conditioning for ground-penetrating radar systems
• Anti-aliasing filtering in data acquisition chains
• Interference rejection in communication receiver front-ends

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for end-of-life notifications prior to finalizing procurement plans. Ensure storage conditions align with semiconductor handling standards.

Selection Notes

Select this component when a fixed fourth-order low-pass response is required without external passive components. Verify that the system clock frequency supports the desired cutoff bandwidth. Consider thermal management requirements for the SOIC-28 package during high-density PCB layout.

Part Context

This part belongs to the MAX274/MAX275 family of integrated active filters. It serves as a monolithic alternative to discrete RC ladder networks, offering reduced board space and improved performance consistency compared to traditional analog filter implementations.

Replacement Considerations

The MAX274BCWI+ is a verified industry-standard substitute within the same product family. Both parts share identical pinouts and functional specifications, allowing for direct replacement in existing designs.