MAX7411CUA+T

Overview

The MAX7411CUA+T is a 5th-order, lowpass, elliptic switched-capacitor filter operating from a single +5V supply. It features a clock-tunable corner frequency range of 0.001kHz to 15kHz with a fixed 100:1 clock-to-corner ratio. The device provides a sharp rolloff with a transition ratio of 1.25 and typically 37dB stopband rejection. Key electrical parameters include a typical supply current of 1.2mA in operating mode and 0.2µA in shutdown mode. Total Harmonic Distortion plus Noise is -80dB. The component is housed in an 8-pin µMAX package.

Feature Summary

• 5th-order elliptic lowpass filter architecture providing steep rolloff characteristics
• Clock-tunable corner frequency adjustable via internal oscillator or external clock source
• Low-power operation with dedicated shutdown mode for minimal current consumption
• Single-supply design optimized for +5V systems with offset-adjust capability

Applications

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

Procurement Notes

Verify the specific suffix 'CUA+T' against official documentation to confirm the commercial temperature range, µMAX package type, and tape-and-reel delivery format. Ensure the ordering code matches the exact manufacturer specifications before procurement to avoid functional discrepancies.

Selection Notes

Select this component when a sharp transition ratio of 1.25 is required alongside low distortion. It is suitable for applications needing a 5th-order response without complex external components. Verify that the system clock can be synchronized with the DAC or ADC to prevent beat frequencies.

Part Context

This part belongs to the MAX7408/MAX7411/MAX7412/MAX7415 family of switched-capacitor filters. While sharing similar architectures, the MAX7411 is distinct due to its +5V supply requirement and sharper 1.25 transition ratio compared to the MAX7408's 1.6 ratio.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.