MAX7414EPA

Overview

The MAX7414EPA is a fifth-order, lowpass switched-capacitor filter (SCF) manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates from a single +3V supply and draws 1.2mA of supply current in operating mode. The device features a Butterworth response and allows corner frequencies to be tuned from 1Hz to 15kHz via an external clock. It includes a shutdown mode that reduces supply current to 0.2µA. The component is housed in an 8-pin DIP package and supports through-hole mounting.

Feature Summary

• Provides fifth-order lowpass filtering with a Butterworth frequency response for signal conditioning.
• Features clock-tunable corner frequencies ranging from 1Hz to 15kHz using an external clock source.
• Operates from a single +3V power supply with low active current consumption of 1.2mA.
• Includes a shutdown mode that significantly reduces power consumption to 0.2µA when inactive.

Applications

• ADC anti-aliasing applications
• DAC post-filtering
• Speech processing systems

Procurement Notes

Verify component authenticity and datasheet revision status before integration. Confirm pinout compatibility with existing PCB layouts. Check for end-of-life notifications or discontinuance alerts from the manufacturer. Ensure supply chain stability due to potential obsolescence risks associated with older Maxim Integrated product lines.

Selection Notes

Select this component when a single +3V supply is required for low-power switched-capacitor filtering. Choose the MAX7414EPA specifically for its Butterworth response characteristic, distinguishing it from the Bessel-response MAX7413. Verify that the external clock capability aligns with system timing requirements for the desired 1Hz to 15kHz tunable range.

Part Context

The MAX7414EPA belongs to the MAX7409/MAX7410/MAX7413/MAX7414 family of fifth-order lowpass switched-capacitor filters. This series shares common architectural features such as low power consumption and single-supply operation, but differs in passband response characteristics and supply voltage requirements. The MAX7414 variant is specifically designed for +3V operation with a Butterworth response.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consider evaluating other members of the MAX74xx family, such as the MAX7413, if Bessel response or different supply voltage constraints apply. Verify functional equivalence carefully before substitution.