MAX7410CUA+

Overview

The MAX7410CUA+ is a fifth-order, lowpass switched-capacitor filter with a Butterworth response. It operates from a single +5V supply and draws 1.2mA in active mode, reducing to 0.2µA in shutdown. The corner frequency is tunable between 0.001kHz and 15kHz via a 100:1 clock-to-corner ratio. Key electrical parameters include an output offset voltage of ±4mV (typical), a power-supply rejection ratio of 70dB, and a maximum capacitive load drive of 50pF. The device is housed in an 8-pin µMAX package.

Feature Summary

• Butterworth filter response providing a maximally flat passband
• Clock-tunable corner frequency ranging from 1Hz to 15kHz
• Low-power operation with dedicated shutdown mode
• Single +5V supply capability

Applications

• ADC anti-aliasing
• DAC postfiltering
• Speech processing
• CT2 base stations
• Air-bag electronics

Procurement Notes

Verify the specific suffix 'CUA+' against the manufacturer's current ordering guide to confirm the commercial temperature range and lead-free status. Ensure the component matches the 8-pin µMAX physical footprint required for the target PCB layout. Cross-reference the datasheet revision date to validate that all electrical characteristics align with the production batch specifications.

Selection Notes

Select this component when a maximally flat Butterworth response is required for signal conditioning. It is suitable for applications needing precise corner frequency control via external or internal clocking. Verify that the system operates within the specified +5V supply constraints and that the input signal amplitude remains within the optimal range to minimize total harmonic distortion plus noise.

Part Context

This part belongs to the MAX7409/MAX7410/MAX7413/MAX7414 family of fifth-order lowpass switched-capacitor filters. While the MAX7409 and MAX7413 offer Bessel responses and operate at +3V, the MAX7410 provides a Butterworth response optimized for instrumentation applications requiring minimal passband deviation. The MAX7414 shares the Butterworth characteristic but operates at +3V.

Replacement Considerations

The MAX7414 serves as a pin-compatible alternative if the application requires a +3V supply instead of +5V. For designs necessitating a Bessel response rather than Butterworth, the MAX7409 is the appropriate substitute.