The MAX7420EUA+ is a compact, high-performance lowpass filter from Maxim Integrated, designed to provide efficient signal processing in a variety of applications. This 5th-order, elliptic, switched-capacitor filter operates with a single +2.7V to +5.5V supply, making it an ideal choice for battery-powered devices and portable equipment.

Key Features

• High Filter Order: The device features a 5th-order filter response, which provides a sharp transition band and excellent stopband attenuation, ensuring minimal signal interference.
• Elliptic Response: The elliptic filter design allows for steeper roll-off and better selectivity compared to Butterworth or Chebyshev filters.
• Low Power Consumption: With its low operating current of just 1.2mA (typical) and a power-down feature that reduces current to 0.2µA (typical), the MAX7420EUA+ is optimized for power-sensitive applications.
• Single-Supply Operation: The ability to operate with a single supply voltage ranging from +2.7V to +5.5V provides flexibility in system design and simplifies power management.
• No External Components Required: This filter is fully integrated, meaning it does not require any external resistors, capacitors, or inductors to function, which saves space and reduces system complexity.
• Small Package Size: Packaged in a compact 8-pin µMAX, the MAX7420EUA+ is suitable for space-constrained applications.

Applications

The MAX7420EUA+ is versatile and can be used in a variety of applications, including:

• Anti-aliasing for data acquisition systems
• Signal conditioning and filtering for communications equipment
• Audio and video signal processing
• Medical instrumentation
• Industrial control systems
• Portable and battery-powered electronics

With its high level of integration and performance, the MAX7420EUA+ is a reliable choice for designers looking to implement high-quality signal filtering with minimal design overhead. Its small footprint and ease of use make it an excellent option for a wide range of filtering applications.