MAX7400EPA+

Overview

The MAX7400EPA+ is an 8th-order, lowpass, elliptic switched-capacitor filter in an 8-pin Plastic DIP package. It operates from a single +5V supply with a typical current of 2mA and features a shutdown mode reducing consumption to 0.2µA. The device provides a corner frequency range of 0.001kHz to 10kHz via a 100:1 clock-to-corner ratio. It offers -82dB stopband rejection with a transition ratio of 1.5 and maintains a low output offset voltage of ±5mV.

Feature Summary

• Provides steep rolloff characteristics suitable for anti-aliasing and post-DAC filtering applications
• Supports both self-clocking via external capacitor and external clock input for precise frequency control
• Includes a dedicated offset adjustment pin (OS) for DC output level tuning

Applications

• ADC Anti-Aliasing
• Speech Processing
• Post-DAC Filtering
• Air-Bag Electronics
• CT2 Base Stations

Procurement Notes

Verify the component matches the specific ordering code MAX7400EPA+. Confirm the package type is 8-Pin Plastic DIP and the temperature range is -40°C to +85°C. Ensure the datasheet revision aligns with the required specifications before integration into the design.

Selection Notes

Select this part when an 8th-order elliptic response with high stopband rejection is required. Choose the +5V variant over the +3V models if the system power rail dictates. Consider the DIP package only if through-hole mounting is necessary, as SO packages are also available.

Part Context

This component belongs to the MAX7400 family of switched-capacitor filters. It shares functional similarities with the MAX7403, MAX7404, and MAX7407, differing primarily in operating voltage and filter transition ratio. The EPA suffix specifically denotes the extended temperature range and plastic DIP packaging format.

Replacement Considerations

MAX7403EPA+