MAX7411EUA+

Overview

The MAX7411EUA+ is a fifth-order, lowpass, elliptic switched-capacitor filter operating from a single +5V supply. It features a sharp rolloff with a transition ratio of 1.25 and typically provides 37dB of stopband rejection. The corner frequency is clock-tunable from 1Hz to 15kHz using either an internal oscillator or external clock input. Key electrical parameters include a typical supply current of 1.2mA in operating mode and 0.2µA in shutdown mode. The device offers -80dB THD plus noise performance and maintains a low output offset voltage of ±4mV.

Feature Summary

• Fifth-order elliptic lowpass architecture providing steep rolloff characteristics
• Clock-tunable corner frequency range spanning 1Hz to 15kHz
• Low-power operation with dedicated shutdown mode for minimal current draw
• Single-supply functionality optimized for +5V systems

Applications

• ADC anti-aliasing
• Post-DAC filtering
• Speech processing
• CT2 base stations

Procurement Notes

Verify the specific suffix 'EUA+' corresponds to the extended temperature range (-40°C to +85°C) and the 8-pin µMAX package configuration. Confirm RoHS compliance status through official manufacturer documentation prior to final procurement decisions.

Selection Notes

Select this component when a sharp transition ratio of 1.25 is required alongside low harmonic distortion. Ensure the system can provide a stable clock signal, as the filter's corner frequency is directly dependent on the clock-to-corner ratio. Verify that the single +5V supply constraint aligns with the target application power budget.

Part Context

This part belongs to the MAX7408/MAX7411/MAX7412/MAX7415 family of switched-capacitor filters. While sharing similar architectures, the MAX7411 is distinctively characterized by its +5V operating voltage requirement and a tighter transition ratio of 1.25 compared to the r=1.6 variants in the series.

Replacement Considerations

Public confirmed substitute part numbers: MAX7408EUA+, MAX7412EUA+, MAX7415EUA+