MAX261BEWG

Overview

The MAX261BEWG+ 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 57kHz with a typical supply voltage of ±5V (range 4.74V to 12.6V). It offers 64-step center frequency control and 128-step Q control via a digital interface. Operating temperature range is 0°C to +70°C.

Feature Summary

• Microprocessor programmable interface for independent control of center frequency and Q factor
• Dual second-order switched-capacitor architecture supporting multiple filter configurations
• Integrated oscillator options allowing operation with crystal, RC network, or external clock

Applications

• Microprocessor-tuned filters
• Anti-aliasing filters
• Digital signal processing systems
• Adaptive filters
• Phase-locked loops

Procurement Notes

Verify the specific suffix 'EWG+' against the manufacturer's current datasheet to confirm package type and temperature grade. Confirm RoHS compliance status as indicated in official documentation. Check for product discontinuance notices or end-of-life status prior to procurement planning.

Selection Notes

Select this component when precise digital tuning of filter characteristics is required without external passive components. Ensure the application operates within the specified 0°C to +70°C temperature range. Verify that the system clock capabilities support the required center frequency range up to 57kHz.

Part Context

This part belongs to the MAX260/MAX261/MAX262 family of CMOS dual second-order universal switched-capacitor active filters. The MAX261 variant specifically targets applications requiring center frequencies up to 57kHz, distinguishing it from the lower-frequency MAX260 and higher-frequency MAX262 models.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.