Maxim Integrated MAX294CPA+ Overview

The MAX294CPA+ from Maxim Integrated is a high-performance, 8th-order, lowpass, elliptic, switched-capacitor filter that is designed to provide sharp cutoff characteristics and excellent filter response. This integrated circuit (IC) is particularly well-suited for applications requiring pre-ADC filtering, anti-aliasing filters, or signal conditioning due to its precise filtering capabilities and flexible design.

Key Features

• High Order Filtering: The 8th-order filter topology provides steep roll-off and minimal passband ripple.
• Low Distortion: Boasts a low total harmonic distortion (THD) which makes it suitable for high-fidelity audio applications.
• Programmable Cutoff Frequency: The cutoff frequency is easily set by an external clock or can be controlled by an onboard oscillator.
• Single-Supply Operation: Operates from a single +5V supply, simplifying power supply design.
• Compact Packaging: Available in an 8-pin DIP package, the MAX294CPA+ is designed for space-saving applications.

Applications

The MAX294CPA+ is versatile and can be used in a wide range of applications including:

• Anti-aliasing for data acquisition systems
• Signal conditioning and filtering for communication systems
• Audio processing equipment
• Spectrum analyzers and DSP front-ends
• Medical instrumentation

Performance Specifications

The device's performance is characterized by its sharp filter characteristics:

• Passband Ripple: ±0.01dB typ
• Stopband Attenuation: 80dB typ at 1.5 x f<sub>CLOCK
• Dynamic Range: 90dB typ

With its robust design and high-quality filtering capabilities, the MAX294CPA+ is a reliable choice for engineers and designers looking to integrate a precise and efficient lowpass filter into their systems. Maxim Integrated's commitment to performance and quality ensures that this product will meet the stringent requirements of modern electronic applications.