MAX260AEWG+T

Overview

The MAX260AEWG+T is a microprocessor-programmable universal active filter manufactured by Analog Devices Inc./Maxim Integrated. It features two second-order switched-capacitor sections housed in a 24-pin Wide SOIC package. The device supports center frequencies up to 7.5kHz with a maximum clock frequency of 350kHz. It operates on ±5V supplies, drawing a typical power supply current of 15mA. The fCLK/f0 ratio error is guaranteed at ±1% for the A grade, and the Q accuracy is ±1% at Q=8.

Feature Summary

• Microprocessor interface allows independent programming of center frequency and Q via digital inputs.
• Universal switched-capacitor topology supports bandpass, lowpass, highpass, notch, and allpass configurations without external components.
• Integrated oscillator circuitry enables operation with crystals, RC networks, or external clocks.

Applications

• µP-Tuned Filters
• Anti-Aliasing Filters
• Digital Signal Processing

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for obsolescence notices, as this specific part number may have limited availability or be subject to discontinuation. Ensure the ordering suffix matches the required tape and reel packaging format.

Selection Notes

Select the MAX260 variant when superior DC offset and low-frequency performance are required compared to the MAX261 or MAX262. Ensure the application center frequency does not exceed 7.5kHz. Verify that the system can provide the necessary clock frequency and digital interface timing requirements for proper operation.

Part Context

This component belongs to the MAX260/MAX261/MAX262 family of CMOS dual second-order universal switched-capacitor active filters. The MAX260 specifically offers improved DC specifications over its siblings but has a lower maximum center frequency range. The family shares similar pinouts and programming interfaces, differing primarily in frequency capabilities and internal auto-zero circuitry.

Replacement Considerations

The MAX260ACWG+ and MAX260BCWG+ are compatible alternatives within the same package type. For higher frequency applications, the MAX261AEWG+ or MAX262AEWG+ may serve as functional replacements, provided the center frequency requirements are met.