MAX7480ESA+

Overview

The MAX7480ESA+ is an 8th-order, lowpass, Butterworth switched-capacitor filter (SCF) designed for single +5V supply operation. It provides a maximally flat passband response with a clock-to-corner frequency ratio of 100:1, allowing corner frequencies from 1Hz to 2kHz. The device draws 2.9mA in operating mode and reduces to 0.2µA in shutdown mode. Key electrical parameters include a typical Total Harmonic Distortion plus Noise (THD+N) of -73dB, an output offset voltage of ±5mV, and a DC insertion gain of 0.3dB. It supports both internal oscillator configuration via an external capacitor and external clocking for precise control.

Feature Summary

• 8th-Order Lowpass Butterworth Filter
• Clock-Tunable Corner Frequency
• Low Power Consumption
• Shutdown Mode

Applications

• ADC Anti-Aliasing
• Post-DAC Filtering

Procurement Notes

Verify the component manufacturer as Analog Devices Inc./Maxim Integrated. Confirm the package type is 8-Pin SOIC. Ensure the temperature range matches the specified -40°C to +85°C operational limits. Check RoHS compliance status if required by specific project standards.

Selection Notes

Select this component when a high-order, low-power anti-aliasing or post-DAC filter is needed. It is suitable for applications requiring a maximally flat passband response. Consider the 100:1 clock-to-corner ratio for flexible frequency tuning. Verify that the input signal amplitude stays within optimal ranges to minimize THD+N.

Part Context

The MAX7480ESA+ belongs to the MAX7480 family of switched-capacitor filters. It is part of Maxim Integrated's portfolio of precision analog signal processing components. The 'ESA' suffix indicates an 8-pin SOIC package with an industrial temperature range. This series is designed for instrumentation and data acquisition systems.

Replacement Considerations

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