MAX7426EPA

Overview

The MAX7426EPA is a fifth-order, lowpass, elliptic active filter manufactured by Analog Devices under the Maxim Integrated brand. It utilizes switched-capacitor technology to achieve a cutoff frequency of 9 kHz with a single channel configuration. The device operates on a single 5 V supply voltage, functioning within a range of 4.5 V to 5.5 V. Designed for surface-mount or through-hole integration depending on the specific package variant, it supports an operating temperature range from 0°C to +70°C. The component is housed in an 8-pin PDIP package, providing a robust solution for signal conditioning applications requiring precise analog filtering characteristics.

Feature Summary

• Implements fifth-order elliptic lowpass filtering using switched-capacitor architecture
• Provides precise 9 kHz cutoff frequency for signal band limiting
• Operates on a standard 5 V single-supply voltage rail
• Includes manual reset functionality for controlled startup behavior

Applications

• Audio signal processing and anti-aliasing filtering
• Instrumentation front-end signal conditioning
• Data acquisition system input stages
• Industrial control loop sensor interfaces

Procurement Notes

Verify the exact suffix against official Analog Devices documentation to confirm pinout compatibility and thermal specifications. Ensure the selected variant matches the required PCB mounting style and environmental rating for the target application environment.

Selection Notes

Select this component when a fixed 9 kHz elliptic response is required without external tuning components. Consider the switched-capacitor nature regarding clock feedthrough if high-frequency noise immunity is critical. Verify that the 5 V supply constraint aligns with the system power architecture.

Part Context

This part belongs to the MAX7426 series of switched-capacitor filters. It shares functional similarities with other members of the family but differs in cutoff frequency and package options. The EPA suffix specifically denotes the through-hole PDIP packaging format, distinguishing it from surface-mount variants like the UMA or SO packages.

Replacement Considerations

Direct replacements include other MAX7426 variants with different cutoff frequencies or packages, such as the MAX7426CUA+T. Cross-referencing with generic switched-capacitor filters requires careful evaluation of clock requirements and filter order specifications.