MAX7415CUA+

Overview

The MAX7415CUA+ is a fifth-order, lowpass, elliptic switched-capacitor filter designed for single-supply operation at +3V. It features a sharp rolloff with a transition ratio of 1.25 and typically provides 37dB of stopband rejection. The device operates from a supply voltage range of 2.7V to 3.6V, drawing 1.2mA in active mode and reducing to 0.2µA in shutdown mode. Corner frequencies are tunable from 0.001kHz to 15kHz via a clock-to-corner ratio of 100:1. It offers -79dB THD+N, ±4mV output offset, and is housed in an 8-pin µMAX package.

Feature Summary

• Fifth-order elliptic lowpass response with steep rolloff
• Clock-tunable corner frequency for precise filtering control
• Low-power operation with dedicated shutdown mode
• Single-supply compatibility for simplified system design

Applications

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

Procurement Notes

Verify the specific suffix 'CUA+' against the manufacturer's current ordering guide to confirm the commercial temperature range (0°C to +70°C) and the 8-pin µMAX package configuration. Ensure the component source matches Analog Devices or Maxim Integrated specifications. Confirm RoHS compliance status as indicated on the official datasheet before finalizing procurement orders.

Selection Notes

Select this component when a sharp transition ratio of 1.25 is required alongside low power consumption. It is suitable for applications needing a fixed elliptic response without external tuning components beyond the clock capacitor. Compare against MAX7408/MAX7412 if higher stopband rejection is needed, or MAX7411/MAX7412 if different supply voltages are preferred.

Part Context

This part belongs to the MAX7408/MAX7411/MAX7412/MAX7415 family of switched-capacitor filters. While sharing similar architectures, the MAX7415 is distinct due to its +3V operating voltage and 1.25 transition ratio. It complements the MAX7412 by offering a steeper rolloff at lower supply voltages, expanding options for portable and battery-powered signal conditioning designs.

Replacement Considerations

Public confirmed substitutes include MAX7415EUA for extended temperature ranges (-40°C to +85°C). Direct functional replacements within the same family include MAX7411 for +5V systems with identical rolloff characteristics.