MAX7407CPA

Overview

The MAX7407CPA+ is an active filter manufactured by Analog Devices Inc./Maxim Integrated, classified as an 8th-order lowpass elliptic filter. It operates on a single channel with a cutoff frequency of 10 kHz. The device supports a power supply voltage range from 2.7 V to 3.6 V, typically working at 3 V. It is designed for through-hole installation in an 8-pin PDIP package. The operational temperature range spans from 0°C to +70°C.

Feature Summary

• Provides steep attenuation characteristics inherent to 8th-order elliptic filter topology
• Integrates switched capacitor filtering technology within a compact 8-pin package
• Operates efficiently on a single low-voltage power supply

Applications

• Signal conditioning in data acquisition systems requiring high selectivity
• Anti-aliasing filtering in analog-to-digital converter interfaces
• Noise reduction in sensor signal processing chains

Procurement Notes

Verify component authenticity and datasheet alignment before integration. Confirm the specific suffix indicates lead-free status if required by assembly standards. Check current lifecycle status as obsolescence may impact long-term availability. Ensure the PDIP-8 package matches the target PCB footprint design constraints.

Selection Notes

Select this component when strict stopband rejection is necessary for narrowband applications. Consider the 10 kHz cutoff relative to the system clock rate. Evaluate the 8th-order complexity against simpler filter requirements to balance performance with potential phase distortion. Verify that the 3 V supply voltage aligns with the rest of the system power architecture.

Part Context

This part belongs to the MAX7407 series of switched-capacitor filters. Variants such as MAX7407EPA and MAX7407CSA+ exist, differing primarily in temperature ratings and packaging styles. The CPA+ designation specifically denotes the commercial temperature range and lead-free construction within the PDIP-8 form factor.

Replacement Considerations

Direct pin-compatible replacements are not explicitly confirmed in public documentation. Evaluate other members of the MAX7407 family or newer generations from Analog Devices for functional equivalence. Verify electrical parameter compatibility before substituting.