Maxim Integrated MAX7421CUA+ Product Overview

The Maxim Integrated MAX7421CUA+ is a highly sophisticated, 8th-order, lowpass, elliptic, switched-capacitor filter that significantly simplifies the design of high-order analog filters. This compact, precision filter is encapsulated in a space-saving 8-pin µMAX package, making it an ideal choice for applications where space is at a premium.

Key Features

• Filter Type: The MAX7421CUA+ is an 8th-order lowpass elliptic filter, providing sharp cutoff characteristics. This type of filter is well-suited for applications requiring a high degree of stopband attenuation and a fast transition from passband to stopband.
• Clock-Tunable Cutoff Frequency: The cutoff frequency of the MAX7421CUA+ is tunable by an external clock, or it can be directly set by the ratio of the clock frequency to the corner frequency, offering design flexibility.
• Low Power Consumption: Designed for power-sensitive applications, the device operates with a low supply current of 2mA, making it an energy-efficient choice for battery-operated devices.
• Single-Supply Operation: The MAX7421CUA+ operates from a single +5V supply, simplifying the power supply design and reducing the overall system power requirements.
• No External Components Required: The integrated switched-capacitor design means that no external components are necessary for the filter's operation, which reduces the bill of materials and saves on board space.
• µMAX Package: The device comes in an ultra-small 8-pin µMAX package, which is advantageous for compact designs and portable electronics.

Applications

The MAX7421CUA+ is versatile and can be used in a variety of applications where high-quality signal processing is required. Common applications include:

• Anti-aliasing for data acquisition systems
• Signal conditioning in communications systems
• Audio processing
• Medical instrumentation
• Industrial process controls

With its precision performance and compact form factor, the Maxim Integrated MAX7421CUA+ is a prime choice for engineers and designers looking to implement high-order filtering without the complexity and size constraints associated with traditional analog designs.