MAX280EPA

Overview

The MAX280EPA is a fifth-order, zero-error, Butterworth low-pass filter manufactured by Analog Devices Inc./Maxim Integrated. It utilizes an active switched-capacitor architecture to achieve precise frequency response characteristics without requiring external tuning components. The device operates within a supply voltage range of 3V to 12V and features a programmable clock input that allows the cutoff frequency to be adjusted relative to the clock rate. Packaged in an 8-pin PDIP format, it integrates all necessary filtering elements on a single chip.

Feature Summary

• Integrates a complete fifth-order Butterworth low-pass filter function using switched-capacitor technology
• Provides zero DC error performance for high-precision signal conditioning applications
• Features a programmable cutoff frequency determined by an external clock signal
• Eliminates the need for external passive components such as resistors or capacitors

Applications

• Data acquisition systems requiring anti-aliasing filtering
• Precision instrumentation signal chains
• Medical equipment signal processing
• Industrial control system inputs

Procurement Notes

Verify component authenticity through authorized distributors due to potential availability constraints. Confirm package integrity and pin alignment upon receipt. Cross-reference datasheet specifications with application requirements before integration. Ensure proper handling procedures are followed to prevent electrostatic discharge damage during installation and storage.

Selection Notes

Select this component when a fixed Butterworth response is required without external passive components. Consider the relationship between the clock frequency and the desired cutoff frequency during circuit design. Evaluate power supply noise immunity and clock jitter sensitivity for high-precision applications. Verify compatibility with available clock sources in the target system architecture.

Part Context

This part belongs to the MAX280 family of active filters designed for precision analog signal processing. It represents a solution for applications where space constraints and component count reduction are critical. The switched-capacitor approach allows for monolithic integration of complex filter responses typically achieved with discrete RC networks.

Replacement Considerations

Public confirmed substitute part numbers: None identified.